TY  - CONF
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Tadić, Tamara
AU  - Sandić, Zvjezdana
AU  - Bulatović, Sandra
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6737
AB  - Hexavalent chromium, Cr(VI), is one of the most notorious pollutants with
health and environmental impacts due to carcinogenic, teratogenic, and mutagenic
effects on the human organism.1 Therefore, treating wastewater containing Cr(VI)
before discharge into the aquatic system is extremely necessary. In this study, the
nonlinear regression method was used to determine the kinetic and isotherm
parameters for Cr(VI) sorption from aqueous solution on hexamethylene diaminemodified 177btain177177ous copolymer based on glycidyl methacrylate (PGEHMD).2 The Avrami kinetic model provides the best correlation of the experimental data with R2 = 0.994 and χ2 = 0.004, while the Freundlich isotherm model best described the Cr(VI) sorption onto PGE-HMD copolymer indicating a heterogenous sorption process.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
T1  - Kinetic and Isotherm Non-Linear Study of Cr(VI) Sorption onto Amino-Modified Macroporous GMA Based Copolymer
SP  - 177
EP  - 177
UR  - https://hdl.handle.net/21.15107/rcub_cer_6737
ER  - 

@conference{
author = "Marković, Bojana and Stefanović, Ivan and Tadić, Tamara and Sandić, Zvjezdana and Bulatović, Sandra and Nastasović, Aleksandra and Onjia, Antonije",
year = "2023",
abstract = "Hexavalent chromium, Cr(VI), is one of the most notorious pollutants with
health and environmental impacts due to carcinogenic, teratogenic, and mutagenic
effects on the human organism.1 Therefore, treating wastewater containing Cr(VI)
before discharge into the aquatic system is extremely necessary. In this study, the
nonlinear regression method was used to determine the kinetic and isotherm
parameters for Cr(VI) sorption from aqueous solution on hexamethylene diaminemodified 177btain177177ous copolymer based on glycidyl methacrylate (PGEHMD).2 The Avrami kinetic model provides the best correlation of the experimental data with R2 = 0.994 and χ2 = 0.004, while the Freundlich isotherm model best described the Cr(VI) sorption onto PGE-HMD copolymer indicating a heterogenous sorption process.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia",
title = "Kinetic and Isotherm Non-Linear Study of Cr(VI) Sorption onto Amino-Modified Macroporous GMA Based Copolymer",
pages = "177-177",
url = "https://hdl.handle.net/21.15107/rcub_cer_6737"
}

Marković, B., Stefanović, I., Tadić, T., Sandić, Z., Bulatović, S., Nastasović, A.,& Onjia, A.. (2023). Kinetic and Isotherm Non-Linear Study of Cr(VI) Sorption onto Amino-Modified Macroporous GMA Based Copolymer. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 177-177.
https://hdl.handle.net/21.15107/rcub_cer_6737

Marković B, Stefanović I, Tadić T, Sandić Z, Bulatović S, Nastasović A, Onjia A. Kinetic and Isotherm Non-Linear Study of Cr(VI) Sorption onto Amino-Modified Macroporous GMA Based Copolymer. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia. 2023;:177-177.
https://hdl.handle.net/21.15107/rcub_cer_6737 .

Marković, Bojana, Stefanović, Ivan, Tadić, Tamara, Sandić, Zvjezdana, Bulatović, Sandra, Nastasović, Aleksandra, Onjia, Antonije, "Kinetic and Isotherm Non-Linear Study of Cr(VI) Sorption onto Amino-Modified Macroporous GMA Based Copolymer" in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia (2023):177-177,
https://hdl.handle.net/21.15107/rcub_cer_6737 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis
AU  - Dapčević, Aleksandra
AU  - Marković, Bojana
AU  - Tadić, Tamara
AU  - Bulatović, Sandra
AU  - Džunuzović, Jasna
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6691
AB  - Polyurethane networks (PUNs) based on hyperbranched polyesters (HBP),
polycaprolactone (PCL), and isophorone diisocyanate were prepared.1,2 PUNs consist
of different content of hard (HS) and soft segments (SS). The impact of the HBP and
the content of the SS on the structure and viscoelastic properties of the prepared PUNs
were investigated. XRD analysis confirmed that PUNs with lower SS content were
amorphous, while samples with the highest SS content had a certain degree of
crystallinity. Viscoelastic properties of PUNs depend on the SS content and used
HBP. These PUNs have potential application as coatings.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
T1  - Viscoelastic Properties of Polycaprolactone Based Polyurethane Networks
SP  - 176
EP  - 176
UR  - https://hdl.handle.net/21.15107/rcub_cer_6691
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Enis and Dapčević, Aleksandra and Marković, Bojana and Tadić, Tamara and Bulatović, Sandra and Džunuzović, Jasna",
year = "2023",
abstract = "Polyurethane networks (PUNs) based on hyperbranched polyesters (HBP),
polycaprolactone (PCL), and isophorone diisocyanate were prepared.1,2 PUNs consist
of different content of hard (HS) and soft segments (SS). The impact of the HBP and
the content of the SS on the structure and viscoelastic properties of the prepared PUNs
were investigated. XRD analysis confirmed that PUNs with lower SS content were
amorphous, while samples with the highest SS content had a certain degree of
crystallinity. Viscoelastic properties of PUNs depend on the SS content and used
HBP. These PUNs have potential application as coatings.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia",
title = "Viscoelastic Properties of Polycaprolactone Based Polyurethane Networks",
pages = "176-176",
url = "https://hdl.handle.net/21.15107/rcub_cer_6691"
}

Stefanović, I., Džunuzović, E., Dapčević, A., Marković, B., Tadić, T., Bulatović, S.,& Džunuzović, J.. (2023). Viscoelastic Properties of Polycaprolactone Based Polyurethane Networks. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 176-176.
https://hdl.handle.net/21.15107/rcub_cer_6691

Stefanović I, Džunuzović E, Dapčević A, Marković B, Tadić T, Bulatović S, Džunuzović J. Viscoelastic Properties of Polycaprolactone Based Polyurethane Networks. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia. 2023;:176-176.
https://hdl.handle.net/21.15107/rcub_cer_6691 .

Stefanović, Ivan, Džunuzović, Enis, Dapčević, Aleksandra, Marković, Bojana, Tadić, Tamara, Bulatović, Sandra, Džunuzović, Jasna, "Viscoelastic Properties of Polycaprolactone Based Polyurethane Networks" in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia (2023):176-176,
https://hdl.handle.net/21.15107/rcub_cer_6691 .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Stevanović, Sanja
AU  - Dapčević, Aleksandra
AU  - Savić, Sanja
AU  - Giuseppe, Lama
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6119
AB  - The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.
PB  - Elsevier
T2  - Materials Today Communications
T1  - The impact of the polycaprolactone content on the properties of polyurethane networks
VL  - 35
SP  - 105721
DO  - 10.1016/j.mtcomm.2023.105721
ER  - 

@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Stevanović, Sanja and Dapčević, Aleksandra and Savić, Sanja and Giuseppe, Lama",
year = "2023",
abstract = "The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.",
publisher = "Elsevier",
journal = "Materials Today Communications",
title = "The impact of the polycaprolactone content on the properties of polyurethane networks",
volume = "35",
pages = "105721",
doi = "10.1016/j.mtcomm.2023.105721"
}

Stefanović, I., Džunuzović, J., Džunuzović, E., Stevanović, S., Dapčević, A., Savić, S.,& Giuseppe, L.. (2023). The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications
Elsevier., 35, 105721.
https://doi.org/10.1016/j.mtcomm.2023.105721

Stefanović I, Džunuzović J, Džunuzović E, Stevanović S, Dapčević A, Savić S, Giuseppe L. The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications. 2023;35:105721.
doi:10.1016/j.mtcomm.2023.105721 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Stevanović, Sanja, Dapčević, Aleksandra, Savić, Sanja, Giuseppe, Lama, "The impact of the polycaprolactone content on the properties of polyurethane networks" in Materials Today Communications, 35 (2023):105721,
https://doi.org/10.1016/j.mtcomm.2023.105721 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Randjelović, Danijela
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7192
AB  - The aim of this work was to examine the influence of polycaprolactone (PCL) as a soft segment (SS) on the surface properties of polyurethane networks (PUNs). Five PUNs with different SS content (from 10 to 50 wt%) were prepared using Boltorn® aliphatic hyperbranched polyester of the second pseudo generation and isophorone diisocyanate as components of hard segments. The structure, hydrophobicity, wettability, and swelling behavior of these PUNs were investigated. Primarily, the obtained results showed that properties of prepared PUNs strongly depend on the content of SS that is, PCL. It has been established that the increase of SS content reduced the degree of hydrogen bonding in PUNs. Also, the increase of the SS content in PUNs induced appearance of more pronounced microphase separated morphology, better hydrophobicity and non-wetting with diiodomethane. Simultaneously, the increase of the SS content led to the decrease of contact angles with formamide, and surface free energy of the prepared PUNs. These PUNs show good surface properties that are required for their potential application such as coatings.
PB  - John Wiley and Sons Inc.
T2  - Journal of Applied Polymer Science
T1  - The influence of polycaprolactone content on the surface properties of polyurethane networks
SP  - e54989
DO  - 10.1002/app.54989
ER  - 

@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Randjelović, Danijela",
year = "2023",
abstract = "The aim of this work was to examine the influence of polycaprolactone (PCL) as a soft segment (SS) on the surface properties of polyurethane networks (PUNs). Five PUNs with different SS content (from 10 to 50 wt%) were prepared using Boltorn® aliphatic hyperbranched polyester of the second pseudo generation and isophorone diisocyanate as components of hard segments. The structure, hydrophobicity, wettability, and swelling behavior of these PUNs were investigated. Primarily, the obtained results showed that properties of prepared PUNs strongly depend on the content of SS that is, PCL. It has been established that the increase of SS content reduced the degree of hydrogen bonding in PUNs. Also, the increase of the SS content in PUNs induced appearance of more pronounced microphase separated morphology, better hydrophobicity and non-wetting with diiodomethane. Simultaneously, the increase of the SS content led to the decrease of contact angles with formamide, and surface free energy of the prepared PUNs. These PUNs show good surface properties that are required for their potential application such as coatings.",
publisher = "John Wiley and Sons Inc.",
journal = "Journal of Applied Polymer Science",
title = "The influence of polycaprolactone content on the surface properties of polyurethane networks",
pages = "e54989",
doi = "10.1002/app.54989"
}

Stefanović, I., Džunuzović, J., Džunuzović, E.,& Randjelović, D.. (2023). The influence of polycaprolactone content on the surface properties of polyurethane networks. in Journal of Applied Polymer Science
John Wiley and Sons Inc.., e54989.
https://doi.org/10.1002/app.54989

Stefanović I, Džunuzović J, Džunuzović E, Randjelović D. The influence of polycaprolactone content on the surface properties of polyurethane networks. in Journal of Applied Polymer Science. 2023;:e54989.
doi:10.1002/app.54989 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Randjelović, Danijela, "The influence of polycaprolactone content on the surface properties of polyurethane networks" in Journal of Applied Polymer Science (2023):e54989,
https://doi.org/10.1002/app.54989 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Marković, Bojana
AU  - Nastasović, Aleksandra
AU  - Vuković, Zorica
AU  - Dapčević, Aleksandra
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5425
AB  - The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes.
AB  - Утицај врсте и количине нанопуниоца на својства глицидил-метакрила-kо-етилен-гликол диметакрилата (GMA-cо-ЕGDMA)/ органомодификованих монтморилонит (ОМt) нанокомпозита, који су припремљени in situ радикалском суспензионом полимеризацијом, су испитани. Комерцијалне глине (Cloisite 30B и Cloisite 25A) су коришћене у овом раду као нанопуниоци, у количинама од 2 и 10 мас.%. Структура, морфологија, термичка стабилност и порозност полазног GMA-cо-ЕGDMA кополимера и његових нанокомпозита испитани су инфрацрвеном спектроскопијом са Фуријеoвом трансформацијом, рендгенском дифракцијом, скенирајућом електронском микроскопијом са енергодисперзивном спектрометријом, трансмисионом електронском микроскопијом, термогравиметријском анализом и живином порозиметријом. Утврђено је да су оба нанопуниоца глине успешно уграђена у структуру полазног кополимера, истовремено на његовој површини као и на површини попречног пресека. Добијени узорци са 2 мас.% имају претежно ексфолирану структуру слојева глине, док узорци са 10 мас.% показују присуство тактоидних-агрегатих слојева глине. Термогравиметријска анализа је показала да након ~ 30% деградације, сви нанокомпозити постају термички стабилнији од полазног кополимера. Добијени резултати указују да се параметри порозности могу лако модификовати додавањем нанопуниоца глине и на тај начин добити нанокомпозити прилагођени специфичним наменама.
PB  - Serbia : International Institute for the Science of Sintering (IISS)
T2  - Science of Sintering
T1  - Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites
VL  - 54
IS  - 2
SP  - 189
EP  - 200
DO  - 10.2298/SOS2202189S
ER  - 

@article{
author = "Stefanović, Ivan and Marković, Bojana and Nastasović, Aleksandra and Vuković, Zorica and Dapčević, Aleksandra and Pavlović, Vladimir B.",
year = "2022",
abstract = "The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes., Утицај врсте и количине нанопуниоца на својства глицидил-метакрила-kо-етилен-гликол диметакрилата (GMA-cо-ЕGDMA)/ органомодификованих монтморилонит (ОМt) нанокомпозита, који су припремљени in situ радикалском суспензионом полимеризацијом, су испитани. Комерцијалне глине (Cloisite 30B и Cloisite 25A) су коришћене у овом раду као нанопуниоци, у количинама од 2 и 10 мас.%. Структура, морфологија, термичка стабилност и порозност полазног GMA-cо-ЕGDMA кополимера и његових нанокомпозита испитани су инфрацрвеном спектроскопијом са Фуријеoвом трансформацијом, рендгенском дифракцијом, скенирајућом електронском микроскопијом са енергодисперзивном спектрометријом, трансмисионом електронском микроскопијом, термогравиметријском анализом и живином порозиметријом. Утврђено је да су оба нанопуниоца глине успешно уграђена у структуру полазног кополимера, истовремено на његовој површини као и на површини попречног пресека. Добијени узорци са 2 мас.% имају претежно ексфолирану структуру слојева глине, док узорци са 10 мас.% показују присуство тактоидних-агрегатих слојева глине. Термогравиметријска анализа је показала да након ~ 30% деградације, сви нанокомпозити постају термички стабилнији од полазног кополимера. Добијени резултати указују да се параметри порозности могу лако модификовати додавањем нанопуниоца глине и на тај начин добити нанокомпозити прилагођени специфичним наменама.",
publisher = "Serbia : International Institute for the Science of Sintering (IISS)",
journal = "Science of Sintering",
title = "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites",
volume = "54",
number = "2",
pages = "189-200",
doi = "10.2298/SOS2202189S"
}

Stefanović, I., Marković, B., Nastasović, A., Vuković, Z., Dapčević, A.,& Pavlović, V. B.. (2022). Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering
Serbia : International Institute for the Science of Sintering (IISS)., 54(2), 189-200.
https://doi.org/10.2298/SOS2202189S

Stefanović I, Marković B, Nastasović A, Vuković Z, Dapčević A, Pavlović VB. Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering. 2022;54(2):189-200.
doi:10.2298/SOS2202189S .

Stefanović, Ivan, Marković, Bojana, Nastasović, Aleksandra, Vuković, Zorica, Dapčević, Aleksandra, Pavlović, Vladimir B., "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites" in Science of Sintering, 54, no. 2 (2022):189-200,
https://doi.org/10.2298/SOS2202189S . .

TY  - CONF
AU  - Džunuzović, Jasna
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis
AU  - Brzić, Saša
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6124
AB  - In this study, unmodified TiO2 nanoparticles (NPs) and TiO2 NPs surface modified with lauryl
gallate were incorporated into polyurethane (PU) network, based on Boltorn® aliphatic
hyperbranched polyester of the second pseudo generation (BH-20) as crosslinking agent and
polycaprolactone (PCL) as soft segment (SS). The influence of the applied TiO2 NPs on viscoelastic
properties and thermo-oxidative stability of the prepared PU/TiO2 nanocomposites (NCs) were
investigated by dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA),
respectively. DMA results revealed that addition of unmodified and modified TiO2 NPs led to the
increase of glass transition temperature of SS, decrease of the glass transition temperature of hard
segments and crosslinking density of PU network. According to the obtained results, PU/TiO2 NC
loaded with TiO2 NPs surface modified with lauryl gallate has better thermo-oxidative stability than
pure PU and PU/TiO2 NC prepared with unmodified TiO2 NPs.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia
T1  - The influence of TiO2 nanoparticles on viscoelastic properties and thermo-oxidative stability of polyurethane network
VL  - 2
SP  - 401
EP  - 404
UR  - https://hdl.handle.net/21.15107/rcub_cer_6124
ER  - 

@conference{
author = "Džunuzović, Jasna and Stefanović, Ivan and Džunuzović, Enis and Brzić, Saša and Marega, Carla",
year = "2022",
abstract = "In this study, unmodified TiO2 nanoparticles (NPs) and TiO2 NPs surface modified with lauryl
gallate were incorporated into polyurethane (PU) network, based on Boltorn® aliphatic
hyperbranched polyester of the second pseudo generation (BH-20) as crosslinking agent and
polycaprolactone (PCL) as soft segment (SS). The influence of the applied TiO2 NPs on viscoelastic
properties and thermo-oxidative stability of the prepared PU/TiO2 nanocomposites (NCs) were
investigated by dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA),
respectively. DMA results revealed that addition of unmodified and modified TiO2 NPs led to the
increase of glass transition temperature of SS, decrease of the glass transition temperature of hard
segments and crosslinking density of PU network. According to the obtained results, PU/TiO2 NC
loaded with TiO2 NPs surface modified with lauryl gallate has better thermo-oxidative stability than
pure PU and PU/TiO2 NC prepared with unmodified TiO2 NPs.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia",
title = "The influence of TiO2 nanoparticles on viscoelastic properties and thermo-oxidative stability of polyurethane network",
volume = "2",
pages = "401-404",
url = "https://hdl.handle.net/21.15107/rcub_cer_6124"
}

Džunuzović, J., Stefanović, I., Džunuzović, E., Brzić, S.,& Marega, C.. (2022). The influence of TiO2 nanoparticles on viscoelastic properties and thermo-oxidative stability of polyurethane network. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 2, 401-404.
https://hdl.handle.net/21.15107/rcub_cer_6124

Džunuzović J, Stefanović I, Džunuzović E, Brzić S, Marega C. The influence of TiO2 nanoparticles on viscoelastic properties and thermo-oxidative stability of polyurethane network. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia. 2022;2:401-404.
https://hdl.handle.net/21.15107/rcub_cer_6124 .

Džunuzović, Jasna, Stefanović, Ivan, Džunuzović, Enis, Brzić, Saša, Marega, Carla, "The influence of TiO2 nanoparticles on viscoelastic properties and thermo-oxidative stability of polyurethane network" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia, 2 (2022):401-404,
https://hdl.handle.net/21.15107/rcub_cer_6124 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6135
AB  - Polyurethane/organoclay nanocomposites (PUNs) based on 4,4’-diphenylmethane diisocyanate
(MDI) and 1,4-butanediol (BD) as the components of the hard segments (HS) and α,ω-
dixydroxyethoxy propyl poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS),
were prepared by in situ polymerization. Nanocomposites, having different HS content (10 and 20
wt%), were prepared using 1 wt% of organomodified montmorillonite clay (Cloisite 30B®) as
nanofiller. Morphology of clay nanoparticles and mechanical properties of PUNs were investigated
by XRD analysis and tensile test measurements, respectively. The obtained XRD results revealed
that clay nanoparticles were completely delaminated and well dispersed as intercalated or partially
exfoliated layers in the polymer matrix. XRD also confirmed that prepared PUNs have amorphous
character. Prepared PUNs have good mechanical properties, which allow them to be used for
different purposes, such as elastomers, coatings, adhesives, etc.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30 2022, Belgrade, Serbia
T1  - Structure and mechanical properties of polyurethane/organoclay nanocomposites
VL  - 2
SP  - 405
EP  - 408
UR  - https://hdl.handle.net/21.15107/rcub_cer_6135
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Marega, Carla",
year = "2022",
abstract = "Polyurethane/organoclay nanocomposites (PUNs) based on 4,4’-diphenylmethane diisocyanate
(MDI) and 1,4-butanediol (BD) as the components of the hard segments (HS) and α,ω-
dixydroxyethoxy propyl poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS),
were prepared by in situ polymerization. Nanocomposites, having different HS content (10 and 20
wt%), were prepared using 1 wt% of organomodified montmorillonite clay (Cloisite 30B®) as
nanofiller. Morphology of clay nanoparticles and mechanical properties of PUNs were investigated
by XRD analysis and tensile test measurements, respectively. The obtained XRD results revealed
that clay nanoparticles were completely delaminated and well dispersed as intercalated or partially
exfoliated layers in the polymer matrix. XRD also confirmed that prepared PUNs have amorphous
character. Prepared PUNs have good mechanical properties, which allow them to be used for
different purposes, such as elastomers, coatings, adhesives, etc.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30 2022, Belgrade, Serbia",
title = "Structure and mechanical properties of polyurethane/organoclay nanocomposites",
volume = "2",
pages = "405-408",
url = "https://hdl.handle.net/21.15107/rcub_cer_6135"
}

Stefanović, I., Džunuzović, J., Džunuzović, E.,& Marega, C.. (2022). Structure and mechanical properties of polyurethane/organoclay nanocomposites. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30 2022, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 2, 405-408.
https://hdl.handle.net/21.15107/rcub_cer_6135

Stefanović I, Džunuzović J, Džunuzović E, Marega C. Structure and mechanical properties of polyurethane/organoclay nanocomposites. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30 2022, Belgrade, Serbia. 2022;2:405-408.
https://hdl.handle.net/21.15107/rcub_cer_6135 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Marega, Carla, "Structure and mechanical properties of polyurethane/organoclay nanocomposites" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30 2022, Belgrade, Serbia, 2 (2022):405-408,
https://hdl.handle.net/21.15107/rcub_cer_6135 .

TY  - CONF
AU  - Džunuzović, Jasna
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6147
AB  - Polyurethane/TiO2 nanocomposites (NCs) were fabricated from environmentally friendly
polyurethane (PU) network, based on polycaprolactone (PCL) and Boltorn® aliphatic
hyperbranched polyester of the second pseudo generation (BH-20) as crosslinking agent, and
unmodified and surface modified TiO2 nanoparticles (NPs). The surface modification of TiO2 NPs
was done with lauryl gallate. The chemical structure of the prepared PU/TiO2 NCs was studied by
Fourier transform infrared spectroscopy (FTIR), while their amorphous nature was confirmed by Xray diffraction (XRD). The influence of type and content of the applied TiO2 NPs on swelling
properties in toluene and tetrahydrofuran (THF) and on water absorption of the prepared PU/TiO2
NCs were investigated. The obtained results revealed that swelling behavior depends on the used
solvent, while percentage of absorbed water decreases with increasing content of TiO2 NPs and it is generally lower in NCs prepared with modified TiO2 NPs.
PB  - Society of Physical Chemists of Serbia
C3  - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2018, Belgrade, Serbia
T1  - Preparation and swelling properties of polyurethane/TiO2 nanocomposites
VL  - 2
SP  - 409
EP  - 412
UR  - https://hdl.handle.net/21.15107/rcub_cer_6147
ER  - 

@conference{
author = "Džunuzović, Jasna and Stefanović, Ivan and Džunuzović, Enis and Marega, Carla",
year = "2022",
abstract = "Polyurethane/TiO2 nanocomposites (NCs) were fabricated from environmentally friendly
polyurethane (PU) network, based on polycaprolactone (PCL) and Boltorn® aliphatic
hyperbranched polyester of the second pseudo generation (BH-20) as crosslinking agent, and
unmodified and surface modified TiO2 nanoparticles (NPs). The surface modification of TiO2 NPs
was done with lauryl gallate. The chemical structure of the prepared PU/TiO2 NCs was studied by
Fourier transform infrared spectroscopy (FTIR), while their amorphous nature was confirmed by Xray diffraction (XRD). The influence of type and content of the applied TiO2 NPs on swelling
properties in toluene and tetrahydrofuran (THF) and on water absorption of the prepared PU/TiO2
NCs were investigated. The obtained results revealed that swelling behavior depends on the used
solvent, while percentage of absorbed water decreases with increasing content of TiO2 NPs and it is generally lower in NCs prepared with modified TiO2 NPs.",
publisher = "Society of Physical Chemists of Serbia",
journal = "16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2018, Belgrade, Serbia",
title = "Preparation and swelling properties of polyurethane/TiO2 nanocomposites",
volume = "2",
pages = "409-412",
url = "https://hdl.handle.net/21.15107/rcub_cer_6147"
}

Džunuzović, J., Stefanović, I., Džunuzović, E.,& Marega, C.. (2022). Preparation and swelling properties of polyurethane/TiO2 nanocomposites. in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2018, Belgrade, Serbia
Society of Physical Chemists of Serbia., 2, 409-412.
https://hdl.handle.net/21.15107/rcub_cer_6147

Džunuzović J, Stefanović I, Džunuzović E, Marega C. Preparation and swelling properties of polyurethane/TiO2 nanocomposites. in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2018, Belgrade, Serbia. 2022;2:409-412.
https://hdl.handle.net/21.15107/rcub_cer_6147 .

Džunuzović, Jasna, Stefanović, Ivan, Džunuzović, Enis, Marega, Carla, "Preparation and swelling properties of polyurethane/TiO2 nanocomposites" in 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2018, Belgrade, Serbia, 2 (2022):409-412,
https://hdl.handle.net/21.15107/rcub_cer_6147 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Basagni, Andrea
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6187
AB  - Waterborne polyurethanes (WBPUs) represent a class of polyurethanes (PUs), in which water is used as the dispersion medium, instead hazardous organic solvents. In this manner, the emission of volatile organic compounds is decreased, leading to the environmental preservation. Poly(dimethylsiloxane) (PDMS) has a lot of useful features, such as low glass transition temperature, Tg, low surface energy, excellent biocompatibility, high thermal and oxidative stability, which is why PDMS is often used in WBPU formulations. Siloxane-modified WBPUs exhibit the properties of both, PDMS and PUs. WBPUs based on PDMS have good surface properties, such as excellent hydrophobicity, chemical resistance and low surface energy. Because of these useful features, WBPUs based on PDMS can be used as coatings, adhesives, paints, etc. In this work, a series of WBPUs was synthesized via one-step polymerization method, without a chain extension step, using acetone and water as solvents and stannous octoate as a catalyst.
PB  - Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts - Second International Conference on Electron Microscopy of Nanostructures ELMINA2022, August 22nd–26th, 2022, Belgrade, Serbia
T1  - Morphology of Waterborne Polyurethanes Based on Poly(dimethylsiloxane)
SP  - 138
EP  - 139
UR  - https://hdl.handle.net/21.15107/rcub_cer_6187
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Basagni, Andrea and Marega, Carla",
year = "2022",
abstract = "Waterborne polyurethanes (WBPUs) represent a class of polyurethanes (PUs), in which water is used as the dispersion medium, instead hazardous organic solvents. In this manner, the emission of volatile organic compounds is decreased, leading to the environmental preservation. Poly(dimethylsiloxane) (PDMS) has a lot of useful features, such as low glass transition temperature, Tg, low surface energy, excellent biocompatibility, high thermal and oxidative stability, which is why PDMS is often used in WBPU formulations. Siloxane-modified WBPUs exhibit the properties of both, PDMS and PUs. WBPUs based on PDMS have good surface properties, such as excellent hydrophobicity, chemical resistance and low surface energy. Because of these useful features, WBPUs based on PDMS can be used as coatings, adhesives, paints, etc. In this work, a series of WBPUs was synthesized via one-step polymerization method, without a chain extension step, using acetone and water as solvents and stannous octoate as a catalyst.",
publisher = "Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts - Second International Conference on Electron Microscopy of Nanostructures ELMINA2022, August 22nd–26th, 2022, Belgrade, Serbia",
title = "Morphology of Waterborne Polyurethanes Based on Poly(dimethylsiloxane)",
pages = "138-139",
url = "https://hdl.handle.net/21.15107/rcub_cer_6187"
}

Stefanović, I., Džunuzović, J., Džunuzović, E., Basagni, A.,& Marega, C.. (2022). Morphology of Waterborne Polyurethanes Based on Poly(dimethylsiloxane). in Program and Book of Abstracts - Second International Conference on Electron Microscopy of Nanostructures ELMINA2022, August 22nd–26th, 2022, Belgrade, Serbia
Serbian Academy of Sciences and Arts., 138-139.
https://hdl.handle.net/21.15107/rcub_cer_6187

Stefanović I, Džunuzović J, Džunuzović E, Basagni A, Marega C. Morphology of Waterborne Polyurethanes Based on Poly(dimethylsiloxane). in Program and Book of Abstracts - Second International Conference on Electron Microscopy of Nanostructures ELMINA2022, August 22nd–26th, 2022, Belgrade, Serbia. 2022;:138-139.
https://hdl.handle.net/21.15107/rcub_cer_6187 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Basagni, Andrea, Marega, Carla, "Morphology of Waterborne Polyurethanes Based on Poly(dimethylsiloxane)" in Program and Book of Abstracts - Second International Conference on Electron Microscopy of Nanostructures ELMINA2022, August 22nd–26th, 2022, Belgrade, Serbia (2022):138-139,
https://hdl.handle.net/21.15107/rcub_cer_6187 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6200
AB  - A series of novel waterborne polyurethanes (WBPUs) was synthesized using α,ω-
dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-bis-
(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). Different DMPA/PDMS and
constant –NCO/–OH molar ratio have been applied for the synthesis of six different WBPUs,
without the usage of chain extension step. The structure-properties relationship was examined
with diverse experimental analyses. ATR-FTIR, 1H and 13C NMR analyses confirmed the
incorporation of PDMS parts inside polyurethane backbone and the successful preparation of
WBPUs. XRD analysis showed that all WBPUs are amorphous, without any kind of threedimensional
order. According to the conducted TG measurements, the incorporation of PDMS
increases thermal stability of WBPUs. DMA results confirmed the existence of microphase
separation, which was more pronounced in WBPUs with higher PDMS content. Contact angle
measurements with water confirmed good surface hydrophobicity of these WBPUs, which
originates from the high percentages of Si atoms present on the surface of WBPU films. Good
hydrophobicity originates from PDMS which has known to possess low surface energy and have
a high tendency to migrate on the surface of the WBPUs. The synthesis of these WBPUs represents
a more efficient and eco-friendly way for preparation of polyurethanes and they are good
candidates for application as coatings.
PB  - Belgrade : Materials Research  Society of Serbia
C3  - Program  and  the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro
T1  - Waterborne polyurethanes based on poly(dimethylsiloxane)
SP  - 87
EP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_cer_6200
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Marega, Carla",
year = "2022",
abstract = "A series of novel waterborne polyurethanes (WBPUs) was synthesized using α,ω-
dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-bis-
(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). Different DMPA/PDMS and
constant –NCO/–OH molar ratio have been applied for the synthesis of six different WBPUs,
without the usage of chain extension step. The structure-properties relationship was examined
with diverse experimental analyses. ATR-FTIR, 1H and 13C NMR analyses confirmed the
incorporation of PDMS parts inside polyurethane backbone and the successful preparation of
WBPUs. XRD analysis showed that all WBPUs are amorphous, without any kind of threedimensional
order. According to the conducted TG measurements, the incorporation of PDMS
increases thermal stability of WBPUs. DMA results confirmed the existence of microphase
separation, which was more pronounced in WBPUs with higher PDMS content. Contact angle
measurements with water confirmed good surface hydrophobicity of these WBPUs, which
originates from the high percentages of Si atoms present on the surface of WBPU films. Good
hydrophobicity originates from PDMS which has known to possess low surface energy and have
a high tendency to migrate on the surface of the WBPUs. The synthesis of these WBPUs represents
a more efficient and eco-friendly way for preparation of polyurethanes and they are good
candidates for application as coatings.",
publisher = "Belgrade : Materials Research  Society of Serbia",
journal = "Program  and  the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro",
title = "Waterborne polyurethanes based on poly(dimethylsiloxane)",
pages = "87-87",
url = "https://hdl.handle.net/21.15107/rcub_cer_6200"
}

Stefanović, I., Džunuzović, J., Džunuzović, E.,& Marega, C.. (2022). Waterborne polyurethanes based on poly(dimethylsiloxane). in Program  and  the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro
Belgrade : Materials Research  Society of Serbia., 87-87.
https://hdl.handle.net/21.15107/rcub_cer_6200

Stefanović I, Džunuzović J, Džunuzović E, Marega C. Waterborne polyurethanes based on poly(dimethylsiloxane). in Program  and  the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro. 2022;:87-87.
https://hdl.handle.net/21.15107/rcub_cer_6200 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Marega, Carla, "Waterborne polyurethanes based on poly(dimethylsiloxane)" in Program  and  the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro (2022):87-87,
https://hdl.handle.net/21.15107/rcub_cer_6200 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Marega, Carla
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6201
AB  - In this study, six waterborne polyurethanes (WBPUs) were synthesized based on α,ω-
dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-
bis-(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). WBPUs were
prepared without a chain extension step and with various DMPA/PDMS molar ratios
(from 0.2 to 0.7). The mechanical features, particle size and particle size distribution, as
well as molecular weights of WBPUs were investigated by diverse experimental
techniques.
Tensile strength values were in the range from 4.03 to 6.33 MPa, and generally decrease
with decreasing PDMS content in WBPUs. This occurs due to the presence of lower
degree of microphase separation in WBPUs with lower PDMS content. On the other
hand, the incorporation of flexible PDMS led to an increase of elongation at break values
(from 0.4 to 58.6%) in WBPUs. The particle size of the prepared WBPU dispersions and
molecular weight of WBPU films decrease with increasing DMPA content. Particle sizes
of these WBPU dispersions are in the range from 91.4 to 232.3 nm, while the weight
average molecular weights (Mw) are in the range from 11900 to 15300 g/mol [1].
Prepared WBPUs are polymer materials with good mechanical features and suitable
particle sizes, which enable them to be used as coatings for different purposes.
PB  - Belgrade : Serbian Chemical Society
PB  - Belgrade : Serbian Young Chemists’ Club
C3  - Book of Abstracts - 8th Conference of the Young Chemists of Serbia, , 29th October 2022University of Belgrade, Faculty of Chemistry,
T1  - Mechanical properties and particle size of the waterborne polyurethanes
SP  - 64
EP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_cer_6201
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Marega, Carla",
year = "2022",
abstract = "In this study, six waterborne polyurethanes (WBPUs) were synthesized based on α,ω-
dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-
bis-(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). WBPUs were
prepared without a chain extension step and with various DMPA/PDMS molar ratios
(from 0.2 to 0.7). The mechanical features, particle size and particle size distribution, as
well as molecular weights of WBPUs were investigated by diverse experimental
techniques.
Tensile strength values were in the range from 4.03 to 6.33 MPa, and generally decrease
with decreasing PDMS content in WBPUs. This occurs due to the presence of lower
degree of microphase separation in WBPUs with lower PDMS content. On the other
hand, the incorporation of flexible PDMS led to an increase of elongation at break values
(from 0.4 to 58.6%) in WBPUs. The particle size of the prepared WBPU dispersions and
molecular weight of WBPU films decrease with increasing DMPA content. Particle sizes
of these WBPU dispersions are in the range from 91.4 to 232.3 nm, while the weight
average molecular weights (Mw) are in the range from 11900 to 15300 g/mol [1].
Prepared WBPUs are polymer materials with good mechanical features and suitable
particle sizes, which enable them to be used as coatings for different purposes.",
publisher = "Belgrade : Serbian Chemical Society, Belgrade : Serbian Young Chemists’ Club",
journal = "Book of Abstracts - 8th Conference of the Young Chemists of Serbia, , 29th October 2022University of Belgrade, Faculty of Chemistry,",
title = "Mechanical properties and particle size of the waterborne polyurethanes",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_cer_6201"
}

Stefanović, I., Džunuzović, J., Džunuzović, E.,& Marega, C.. (2022). Mechanical properties and particle size of the waterborne polyurethanes. in Book of Abstracts - 8th Conference of the Young Chemists of Serbia, , 29th October 2022University of Belgrade, Faculty of Chemistry,
Belgrade : Serbian Chemical Society., 64-64.
https://hdl.handle.net/21.15107/rcub_cer_6201

Stefanović I, Džunuzović J, Džunuzović E, Marega C. Mechanical properties and particle size of the waterborne polyurethanes. in Book of Abstracts - 8th Conference of the Young Chemists of Serbia, , 29th October 2022University of Belgrade, Faculty of Chemistry,. 2022;:64-64.
https://hdl.handle.net/21.15107/rcub_cer_6201 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Marega, Carla, "Mechanical properties and particle size of the waterborne polyurethanes" in Book of Abstracts - 8th Conference of the Young Chemists of Serbia, , 29th October 2022University of Belgrade, Faculty of Chemistry, (2022):64-64,
https://hdl.handle.net/21.15107/rcub_cer_6201 .

TY  - JOUR
AU  - Pergal, Marija
AU  - Ostojić, Sanja
AU  - Steinhart, Miloš
AU  - Stefanović, Ivan
AU  - Pezo, Lato
AU  - Spírková, Milena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5615
AB  - Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20–55 wt. %) were prepared by in situ polymerization in the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 wt. %). Hydroxyl-terminated ethoxypropyl- poly(dimethylsiloxane) was used as soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol were the hard segment components. The study of the influence of the hard segment content on the functional properties of TPU NCs was performed by Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analyses (DMTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), water contact angle and water absorption tests. The results revealed that TPU NCs with the increasing hard segment content exhibit higher values of degree of microphase separation, melting temperature of the hard segments, degree of crystallinity, storage modulus (except for TPU NC-55), but lower thermal stability and hydrophobicity. TPU NC films were hydrophobic and their free surface energy was in the range from 17.7 to 24.9 mJ m-2. This work highlights how the composition of TPU NCs would affect their functional properties and provide an additional composition intended for designing advanced TPU NC materials for special biomedical applications.
AB  - Термопластични поли(уретан-силоксан)/органоглина нанокомпозити (TPU NCs) са различитим садржајем тврдих сегмената (20–55 теж. %) припремљени су in situ полимеризацијом у присуству органски модификованог монтморилонита као нанопуниoца (Cloisite 30B; 1 теж. %). Као меки сегмент коришћен је хидроксиетоксипропил терминирани поли(диметилсилоксан), а као компоненте тврдог сегмента коршћени су 4,4'-  -метилендифенилдиизоцијанат и 1,4-бутандиол. Проучавање утицаја садржаја тврдог сегмента на функционална својства TPU NCs је испитивано FTIR спектроскопијом, дифракцијом X-зрака (XRD), микроскопијом атомских сила (AFM), скенирајућом електронском микроскопијом (SEM), динамичко механичко термичком анализом (DMTA), диференцијално скенирајућом калориметријом (DSC), термогравиметријском анализом (TGA), тестовима одређивања контактног угла са водом и апсорпције воде. Резултати су показали да TPU NCs са већим садржајем тврдих сегмената показују веће вредности степена микрофазне сепарације, температуре топљења тврдих сегмената, степена кристалиничности, модула сачуване енергије (осим за TPU NC-55), али нижу термичку стабилност и хидрофобност. TPU NC филмови су били хидрофобни и њихова површинска енергија је била у опсегу од 17,7 до 24,9 mJ m-2. Овај рад истиче како би се променом састава у TPU NCs подешавала функционална својства и обезбедило додатно подешавање састава за дизајнирање напредних TPU NC материјала за специјалне биомедицинске примене.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties
T1  - Нанокомпозити на бази термопластичног линеарног поли(уретан-силоксан)а и органоглине: утицај састава на својства
VL  - 87
IS  - 10
SP  - 1203
EP  - 1218
DO  - 10.2298/JSC220223036P
ER  - 

@article{
author = "Pergal, Marija and Ostojić, Sanja and Steinhart, Miloš and Stefanović, Ivan and Pezo, Lato and Spírková, Milena",
year = "2022",
abstract = "Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20–55 wt. %) were prepared by in situ polymerization in the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 wt. %). Hydroxyl-terminated ethoxypropyl- poly(dimethylsiloxane) was used as soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol were the hard segment components. The study of the influence of the hard segment content on the functional properties of TPU NCs was performed by Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analyses (DMTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), water contact angle and water absorption tests. The results revealed that TPU NCs with the increasing hard segment content exhibit higher values of degree of microphase separation, melting temperature of the hard segments, degree of crystallinity, storage modulus (except for TPU NC-55), but lower thermal stability and hydrophobicity. TPU NC films were hydrophobic and their free surface energy was in the range from 17.7 to 24.9 mJ m-2. This work highlights how the composition of TPU NCs would affect their functional properties and provide an additional composition intended for designing advanced TPU NC materials for special biomedical applications., Термопластични поли(уретан-силоксан)/органоглина нанокомпозити (TPU NCs) са различитим садржајем тврдих сегмената (20–55 теж. %) припремљени су in situ полимеризацијом у присуству органски модификованог монтморилонита као нанопуниoца (Cloisite 30B; 1 теж. %). Као меки сегмент коришћен је хидроксиетоксипропил терминирани поли(диметилсилоксан), а као компоненте тврдог сегмента коршћени су 4,4'-  -метилендифенилдиизоцијанат и 1,4-бутандиол. Проучавање утицаја садржаја тврдог сегмента на функционална својства TPU NCs је испитивано FTIR спектроскопијом, дифракцијом X-зрака (XRD), микроскопијом атомских сила (AFM), скенирајућом електронском микроскопијом (SEM), динамичко механичко термичком анализом (DMTA), диференцијално скенирајућом калориметријом (DSC), термогравиметријском анализом (TGA), тестовима одређивања контактног угла са водом и апсорпције воде. Резултати су показали да TPU NCs са већим садржајем тврдих сегмената показују веће вредности степена микрофазне сепарације, температуре топљења тврдих сегмената, степена кристалиничности, модула сачуване енергије (осим за TPU NC-55), али нижу термичку стабилност и хидрофобност. TPU NC филмови су били хидрофобни и њихова површинска енергија је била у опсегу од 17,7 до 24,9 mJ m-2. Овај рад истиче како би се променом састава у TPU NCs подешавала функционална својства и обезбедило додатно подешавање састава за дизајнирање напредних TPU NC материјала за специјалне биомедицинске примене.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties, Нанокомпозити на бази термопластичног линеарног поли(уретан-силоксан)а и органоглине: утицај састава на својства",
volume = "87",
number = "10",
pages = "1203-1218",
doi = "10.2298/JSC220223036P"
}

Pergal, M., Ostojić, S., Steinhart, M., Stefanović, I., Pezo, L.,& Spírková, M.. (2022). Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 87(10), 1203-1218.
https://doi.org/10.2298/JSC220223036P

Pergal M, Ostojić S, Steinhart M, Stefanović I, Pezo L, Spírková M. Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties. in Journal of the Serbian Chemical Society. 2022;87(10):1203-1218.
doi:10.2298/JSC220223036P .

Pergal, Marija, Ostojić, Sanja, Steinhart, Miloš, Stefanović, Ivan, Pezo, Lato, Spírková, Milena, "Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties" in Journal of the Serbian Chemical Society, 87, no. 10 (2022):1203-1218,
https://doi.org/10.2298/JSC220223036P . .

TY  - JOUR
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Nastasović, Aleksandra
AU  - Sandić, Zvjezdana P.
AU  - Suručić, Ljiljana T.
AU  - Dapčević, Aleksandra
AU  - Džunuzović, Jasna
AU  - Jagličić, Zvonko
AU  - Vuković, Zorica
AU  - Pavlović, Vladimir B.
AU  - Onjia, Antonije E.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5261
AB  - A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.
AB  - Нови магнетични полимер/бентонит композит је припремљен суспензионом кополимеризацијом глицидил-метакрилата и етилен гликол диметакрилата у присуству магнетичног бентонита (MB-PGME) и функционализован етилен диамином (MB-PGME-ED) и хексаметилен диамином (МБ-ПГМЕ-ХД). Добијени узорци су окарактерисани у погледу структуре, као и термичких, магнетних и морфолошких својстава. Испитивана је сорпција ренијума (Re) и волфрама (W) из воденог раствора на MB-PGME-ED и MB-PGME-HD узимајући у обзир њихово време контакта и различите почетне концентрације јона, што даје могућност употребе ових полимера као комерцијалних сорбената. Сорпциони систем прати кинетик псеудо-другог реда уз утицај дифузије унутар честица. Резултати су показали најбоље слагање са Фројндлиховим моделом изотерме.
PB  - Belgrade : ETRAN Society
T2  - Science of Sintering
T1  - Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption
VL  - 53
IS  - 4
SP  - 419
EP  - 428
DO  - 10.2298/SOS2104419M
ER  - 

@article{
author = "Marković, Bojana and Stefanović, Ivan and Nastasović, Aleksandra and Sandić, Zvjezdana P. and Suručić, Ljiljana T. and Dapčević, Aleksandra and Džunuzović, Jasna and Jagličić, Zvonko and Vuković, Zorica and Pavlović, Vladimir B. and Onjia, Antonije E.",
year = "2021",
abstract = "A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model., Нови магнетични полимер/бентонит композит је припремљен суспензионом кополимеризацијом глицидил-метакрилата и етилен гликол диметакрилата у присуству магнетичног бентонита (MB-PGME) и функционализован етилен диамином (MB-PGME-ED) и хексаметилен диамином (МБ-ПГМЕ-ХД). Добијени узорци су окарактерисани у погледу структуре, као и термичких, магнетних и морфолошких својстава. Испитивана је сорпција ренијума (Re) и волфрама (W) из воденог раствора на MB-PGME-ED и MB-PGME-HD узимајући у обзир њихово време контакта и различите почетне концентрације јона, што даје могућност употребе ових полимера као комерцијалних сорбената. Сорпциони систем прати кинетик псеудо-другог реда уз утицај дифузије унутар честица. Резултати су показали најбоље слагање са Фројндлиховим моделом изотерме.",
publisher = "Belgrade : ETRAN Society",
journal = "Science of Sintering",
title = "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption",
volume = "53",
number = "4",
pages = "419-428",
doi = "10.2298/SOS2104419M"
}

Marković, B., Stefanović, I., Nastasović, A., Sandić, Z. P., Suručić, L. T., Dapčević, A., Džunuzović, J., Jagličić, Z., Vuković, Z., Pavlović, V. B.,& Onjia, A. E.. (2021). Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering
Belgrade : ETRAN Society., 53(4), 419-428.
https://doi.org/10.2298/SOS2104419M

Marković B, Stefanović I, Nastasović A, Sandić ZP, Suručić LT, Dapčević A, Džunuzović J, Jagličić Z, Vuković Z, Pavlović VB, Onjia AE. Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering. 2021;53(4):419-428.
doi:10.2298/SOS2104419M .

Marković, Bojana, Stefanović, Ivan, Nastasović, Aleksandra, Sandić, Zvjezdana P., Suručić, Ljiljana T., Dapčević, Aleksandra, Džunuzović, Jasna, Jagličić, Zvonko, Vuković, Zorica, Pavlović, Vladimir B., Onjia, Antonije E., "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption" in Science of Sintering, 53, no. 4 (2021):419-428,
https://doi.org/10.2298/SOS2104419M . .

TY  - CONF
AU  - Tadić, Tamara
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Sandić, Zvjezdana
AU  - Suručić, Ljiljana
AU  - Onjia, Antonije
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6134
AB  - A new metal-chelating glycidyl methacrylate based macroporous copolymer with
ethylenediaminetetraacetic acid functions was tested as a potential Cu(II) and Pb(II) ions sorbent from aqueous solutions. The sorption was studied in non-competitive batch experiments, by varying initial pH and metal concentration, contact time and temperature. Pseudo-first and pseudo-second order model, as well as Bangham, intra-particle and liquid film diffusion models were used to determine the nature of sorption kinetics and the rate of limiting step. Equilibrium sorption data were analyzed with Langmuir, Freundlich, Temkin and Elovich isotherm models.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Investigation of sorption behavior of Cu(II) and Pb(II) onto a novеl EDTA modified copolymer
VL  - 2
SP  - 505
EP  - 508
UR  - https://hdl.handle.net/21.15107/rcub_cer_6134
ER  - 

@conference{
author = "Tadić, Tamara and Marković, Bojana and Stefanović, Ivan and Džunuzović, Jasna and Sandić, Zvjezdana and Suručić, Ljiljana and Onjia, Antonije",
year = "2021",
abstract = "A new metal-chelating glycidyl methacrylate based macroporous copolymer with
ethylenediaminetetraacetic acid functions was tested as a potential Cu(II) and Pb(II) ions sorbent from aqueous solutions. The sorption was studied in non-competitive batch experiments, by varying initial pH and metal concentration, contact time and temperature. Pseudo-first and pseudo-second order model, as well as Bangham, intra-particle and liquid film diffusion models were used to determine the nature of sorption kinetics and the rate of limiting step. Equilibrium sorption data were analyzed with Langmuir, Freundlich, Temkin and Elovich isotherm models.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Investigation of sorption behavior of Cu(II) and Pb(II) onto a novеl EDTA modified copolymer",
volume = "2",
pages = "505-508",
url = "https://hdl.handle.net/21.15107/rcub_cer_6134"
}

Tadić, T., Marković, B., Stefanović, I., Džunuzović, J., Sandić, Z., Suručić, L.,& Onjia, A.. (2021). Investigation of sorption behavior of Cu(II) and Pb(II) onto a novеl EDTA modified copolymer. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 2, 505-508.
https://hdl.handle.net/21.15107/rcub_cer_6134

Tadić T, Marković B, Stefanović I, Džunuzović J, Sandić Z, Suručić L, Onjia A. Investigation of sorption behavior of Cu(II) and Pb(II) onto a novеl EDTA modified copolymer. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;2:505-508.
https://hdl.handle.net/21.15107/rcub_cer_6134 .

Tadić, Tamara, Marković, Bojana, Stefanović, Ivan, Džunuzović, Jasna, Sandić, Zvjezdana, Suručić, Ljiljana, Onjia, Antonije, "Investigation of sorption behavior of Cu(II) and Pb(II) onto a novеl EDTA modified copolymer" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, 2 (2021):505-508,
https://hdl.handle.net/21.15107/rcub_cer_6134 .

TY  - CONF
AU  - Marković, Bojana
AU  - Tadić, Tamara
AU  - Stefanović, Ivan
AU  - Suručić, Ljiljana
AU  - Sandić, Zvjezdana
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6175
AB  - Vanadium and its compounds have multiple applications in industry, such an in alloys to increase strength and as a catalyst. Vanadium(V) is the dominant form in the aquatic environment and also, it is the most hazardous product which can cause an environmental problem due to its high solubility and toxicity. The aim of this study was to investigate the possible use of a novel magnetic polymer/bentonite composite prepared by suspension copolymerization of glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD), for V(V) sorption from aqueous solution.
PB  - Leskovac : Faculty of Technology
C3  - Book of abstracts - 14th Symposium „Novel Technologies and Economic Development“, October 22-23, 2021, Leskovac, Serbia
T1  - Kinetic and desorption study of vanadium (V) on magnetic amino-functionalized polymer/bentonite sorbents
SP  - 109
EP  - 109
UR  - https://hdl.handle.net/21.15107/rcub_cer_6175
ER  - 

@conference{
author = "Marković, Bojana and Tadić, Tamara and Stefanović, Ivan and Suručić, Ljiljana and Sandić, Zvjezdana and Nastasović, Aleksandra and Onjia, Antonije",
year = "2021",
abstract = "Vanadium and its compounds have multiple applications in industry, such an in alloys to increase strength and as a catalyst. Vanadium(V) is the dominant form in the aquatic environment and also, it is the most hazardous product which can cause an environmental problem due to its high solubility and toxicity. The aim of this study was to investigate the possible use of a novel magnetic polymer/bentonite composite prepared by suspension copolymerization of glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD), for V(V) sorption from aqueous solution.",
publisher = "Leskovac : Faculty of Technology",
journal = "Book of abstracts - 14th Symposium „Novel Technologies and Economic Development“, October 22-23, 2021, Leskovac, Serbia",
title = "Kinetic and desorption study of vanadium (V) on magnetic amino-functionalized polymer/bentonite sorbents",
pages = "109-109",
url = "https://hdl.handle.net/21.15107/rcub_cer_6175"
}

Marković, B., Tadić, T., Stefanović, I., Suručić, L., Sandić, Z., Nastasović, A.,& Onjia, A.. (2021). Kinetic and desorption study of vanadium (V) on magnetic amino-functionalized polymer/bentonite sorbents. in Book of abstracts - 14th Symposium „Novel Technologies and Economic Development“, October 22-23, 2021, Leskovac, Serbia
Leskovac : Faculty of Technology., 109-109.
https://hdl.handle.net/21.15107/rcub_cer_6175

Marković B, Tadić T, Stefanović I, Suručić L, Sandić Z, Nastasović A, Onjia A. Kinetic and desorption study of vanadium (V) on magnetic amino-functionalized polymer/bentonite sorbents. in Book of abstracts - 14th Symposium „Novel Technologies and Economic Development“, October 22-23, 2021, Leskovac, Serbia. 2021;:109-109.
https://hdl.handle.net/21.15107/rcub_cer_6175 .

Marković, Bojana, Tadić, Tamara, Stefanović, Ivan, Suručić, Ljiljana, Sandić, Zvjezdana, Nastasović, Aleksandra, Onjia, Antonije, "Kinetic and desorption study of vanadium (V) on magnetic amino-functionalized polymer/bentonite sorbents" in Book of abstracts - 14th Symposium „Novel Technologies and Economic Development“, October 22-23, 2021, Leskovac, Serbia (2021):109-109,
https://hdl.handle.net/21.15107/rcub_cer_6175 .

TY  - CONF
AU  - Marković, Bojana
AU  - Tadić, Tamara
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Suručić, Ljiljana
AU  - Sandić, Zvjezdana
AU  - Nastasović, Aleksandra
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6122
AB  - A novel functionalized macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate),
(pSGE-eda-EDTA) copolymer was obtained by two-step functionalization with ethylene diamine
(EDA) and ethylenediaminetetraacetic acid (EDTA). The initial copolymers, as well as functionalized
samples, were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron
microscopy (SEM), mercury porosimetry and elemental analysis. Additionally, the content of amino
and carboxyl group, as well as the point of zero charge (pHPZC value), were determined.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24, 2021, Belgrade, Serbia
T1  - Synthesis and characterization of EDTA functionalized macroporous glycidyl methacrylate based copolymer
VL  - 2
SP  - 497
EP  - 500
UR  - https://hdl.handle.net/21.15107/rcub_cer_6122
ER  - 

@conference{
author = "Marković, Bojana and Tadić, Tamara and Stefanović, Ivan and Džunuzović, Jasna and Suručić, Ljiljana and Sandić, Zvjezdana and Nastasović, Aleksandra",
year = "2021",
abstract = "A novel functionalized macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate),
(pSGE-eda-EDTA) copolymer was obtained by two-step functionalization with ethylene diamine
(EDA) and ethylenediaminetetraacetic acid (EDTA). The initial copolymers, as well as functionalized
samples, were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron
microscopy (SEM), mercury porosimetry and elemental analysis. Additionally, the content of amino
and carboxyl group, as well as the point of zero charge (pHPZC value), were determined.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24, 2021, Belgrade, Serbia",
title = "Synthesis and characterization of EDTA functionalized macroporous glycidyl methacrylate based copolymer",
volume = "2",
pages = "497-500",
url = "https://hdl.handle.net/21.15107/rcub_cer_6122"
}

Marković, B., Tadić, T., Stefanović, I., Džunuzović, J., Suručić, L., Sandić, Z.,& Nastasović, A.. (2021). Synthesis and characterization of EDTA functionalized macroporous glycidyl methacrylate based copolymer. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24, 2021, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 2, 497-500.
https://hdl.handle.net/21.15107/rcub_cer_6122

Marković B, Tadić T, Stefanović I, Džunuzović J, Suručić L, Sandić Z, Nastasović A. Synthesis and characterization of EDTA functionalized macroporous glycidyl methacrylate based copolymer. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24, 2021, Belgrade, Serbia. 2021;2:497-500.
https://hdl.handle.net/21.15107/rcub_cer_6122 .

Marković, Bojana, Tadić, Tamara, Stefanović, Ivan, Džunuzović, Jasna, Suručić, Ljiljana, Sandić, Zvjezdana, Nastasović, Aleksandra, "Synthesis and characterization of EDTA functionalized macroporous glycidyl methacrylate based copolymer" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24, 2021, Belgrade, Serbia, 2 (2021):497-500,
https://hdl.handle.net/21.15107/rcub_cer_6122 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Marković, Bojana
AU  - Tadić, Tamara
AU  - Nastasović, Aleksandra
AU  - Džunuzović, Enis
AU  - Marega, Carla
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6125
AB  - Two samples of poly(urethane-siloxane) nanocomposites (PUNs), based on 4,4´-diphenylmethane
diisocyanate (MDI) and 1,4-butanediol (BD) as the comonomers of the hard segments (HS) and α,ω-
dixydroxyethoxy propyl poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS),
were prepared by in situ polymerization. HS content of the prepared PUN samples were 10 and 20
wt%. Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller (1 wt%) for
poly(urethane-siloxane)s. Prepared PUNs have good thermal stability, and they represent
semicrystalline polymers.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Thermal properties of polyurethane-clay nanocomposites
VL  - 2
SP  - 501
EP  - 504
UR  - https://hdl.handle.net/21.15107/rcub_cer_6125
ER  - 

@conference{
author = "Stefanović, Ivan and Džunuzović, Jasna and Marković, Bojana and Tadić, Tamara and Nastasović, Aleksandra and Džunuzović, Enis and Marega, Carla",
year = "2021",
abstract = "Two samples of poly(urethane-siloxane) nanocomposites (PUNs), based on 4,4´-diphenylmethane
diisocyanate (MDI) and 1,4-butanediol (BD) as the comonomers of the hard segments (HS) and α,ω-
dixydroxyethoxy propyl poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS),
were prepared by in situ polymerization. HS content of the prepared PUN samples were 10 and 20
wt%. Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller (1 wt%) for
poly(urethane-siloxane)s. Prepared PUNs have good thermal stability, and they represent
semicrystalline polymers.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Thermal properties of polyurethane-clay nanocomposites",
volume = "2",
pages = "501-504",
url = "https://hdl.handle.net/21.15107/rcub_cer_6125"
}

Stefanović, I., Džunuzović, J., Marković, B., Tadić, T., Nastasović, A., Džunuzović, E.,& Marega, C.. (2021). Thermal properties of polyurethane-clay nanocomposites. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 2, 501-504.
https://hdl.handle.net/21.15107/rcub_cer_6125

Stefanović I, Džunuzović J, Marković B, Tadić T, Nastasović A, Džunuzović E, Marega C. Thermal properties of polyurethane-clay nanocomposites. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;2:501-504.
https://hdl.handle.net/21.15107/rcub_cer_6125 .

Stefanović, Ivan, Džunuzović, Jasna, Marković, Bojana, Tadić, Tamara, Nastasović, Aleksandra, Džunuzović, Enis, Marega, Carla, "Thermal properties of polyurethane-clay nanocomposites" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, 2 (2021):501-504,
https://hdl.handle.net/21.15107/rcub_cer_6125 .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis S.
AU  - Brzić, Saša J.
AU  - Jasiukaityte-Grojzdek, Edita
AU  - Basagni, Andrea
AU  - Marega, Carla
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4782
AB  - A series of novel waterborne polyurethanes (WBPUs) was synthesized using α,ω-dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-bis-(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). Different DMPA/PDMS molar ratio (from 0.2 to 0.7) and fixed –NCO/–OH molar ratio of 1.7, has been applied for the synthesis of six different WBPU films, without utilization of chain extension step during the synthesis. The structure of the prepared WBPUs was examined and confirmed by FTIR and NMR spectroscopy. The particle size of the prepared WBPU dispersions and molecular weight of WBPU films decrease with increasing DMPA content. In order to investigate the effect of the DMPA/PDMS ratio on thermal, mechanical and morphological properties, as well as the water resistance of the prepared WBPUs, diverse experimental techniques, such as thermogravimetric analysis, dynamic mechanical analysis, tensile tests, X-ray diffraction analysis (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water contact angle measurements have been carried out. This research has shown that the incorporation of PDMS in WBPUs led to the appearance of microphase separation and provided surface hydrophobicity, good thermal and mechanical properties, which allow application of these WBPUs as coatings for various purposes.
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane)
VL  - 161
SP  - 106474
DO  - 10.1016/j.porgcoat.2021.106474
ER  - 

@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis S. and Brzić, Saša J. and Jasiukaityte-Grojzdek, Edita and Basagni, Andrea and Marega, Carla",
year = "2021",
abstract = "A series of novel waterborne polyurethanes (WBPUs) was synthesized using α,ω-dihydroxypropyl poly(dimethylsiloxane) (PDMS), isophorone diisocyanate (IPDI), 2,2-bis-(hydroxymethyl) propionic acid (DMPA) and triethylamine (TEA). Different DMPA/PDMS molar ratio (from 0.2 to 0.7) and fixed –NCO/–OH molar ratio of 1.7, has been applied for the synthesis of six different WBPU films, without utilization of chain extension step during the synthesis. The structure of the prepared WBPUs was examined and confirmed by FTIR and NMR spectroscopy. The particle size of the prepared WBPU dispersions and molecular weight of WBPU films decrease with increasing DMPA content. In order to investigate the effect of the DMPA/PDMS ratio on thermal, mechanical and morphological properties, as well as the water resistance of the prepared WBPUs, diverse experimental techniques, such as thermogravimetric analysis, dynamic mechanical analysis, tensile tests, X-ray diffraction analysis (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water contact angle measurements have been carried out. This research has shown that the incorporation of PDMS in WBPUs led to the appearance of microphase separation and provided surface hydrophobicity, good thermal and mechanical properties, which allow application of these WBPUs as coatings for various purposes.",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane)",
volume = "161",
pages = "106474",
doi = "10.1016/j.porgcoat.2021.106474"
}

Stefanović, I., Džunuzović, J., Džunuzović, E. S., Brzić, S. J., Jasiukaityte-Grojzdek, E., Basagni, A.,& Marega, C.. (2021). Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane). in Progress in Organic Coatings
Elsevier., 161, 106474.
https://doi.org/10.1016/j.porgcoat.2021.106474

Stefanović I, Džunuzović J, Džunuzović ES, Brzić SJ, Jasiukaityte-Grojzdek E, Basagni A, Marega C. Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane). in Progress in Organic Coatings. 2021;161:106474.
doi:10.1016/j.porgcoat.2021.106474 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis S., Brzić, Saša J., Jasiukaityte-Grojzdek, Edita, Basagni, Andrea, Marega, Carla, "Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane)" in Progress in Organic Coatings, 161 (2021):106474,
https://doi.org/10.1016/j.porgcoat.2021.106474 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis S.
AU  - Dapčević, Aleksandra
AU  - Šešlija, Sanja
AU  - Balanč, Bojana D.
AU  - Dobrzyńska-Mizera, Monika
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3971
AB  - This work was focused on the synthesis of polyurethane networks (PUNs) based on
polycaprolactone (PCL) as soft segment (SS) and Boltorn® aliphatic hyperbranched
polyester of the second pseudo generation and 4,4′-diphenylmethane diisocyanate
(MDI) as the parts of the hard segments (HS), by a two-step solution polymerization.
In order to find the best ratio between HS and SS to achieve good thermal
and mechanical properties, suitable hydrophobicity and morphology of the PUNs,
various experimental analyses were conducted. The obtained results revealed that
features of the PUNs highly depend on the PCL content. The increase in the PCL
content leads to the increase in thermal stability, hydrophobicity and appearance of
the microphase separation, but on the other side, it also leads to the decrease in storage
modulus in the rubbery plateau, crosslinking density and glass transition temperatures
of PUNs. This work shows that features of PUNs can be easily adjusted for
a specific application by careful selection of the SS and HS ratio.
PB  - Springer
T2  - Polymer Bulletin
T1  - Composition-property relationship of polyurethane networks based on polycaprolactone diol
DO  - 10.1007/s00289-020-03473-0
ER  - 

@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis S. and Dapčević, Aleksandra and Šešlija, Sanja and Balanč, Bojana D. and Dobrzyńska-Mizera, Monika",
year = "2020",
abstract = "This work was focused on the synthesis of polyurethane networks (PUNs) based on
polycaprolactone (PCL) as soft segment (SS) and Boltorn® aliphatic hyperbranched
polyester of the second pseudo generation and 4,4′-diphenylmethane diisocyanate
(MDI) as the parts of the hard segments (HS), by a two-step solution polymerization.
In order to find the best ratio between HS and SS to achieve good thermal
and mechanical properties, suitable hydrophobicity and morphology of the PUNs,
various experimental analyses were conducted. The obtained results revealed that
features of the PUNs highly depend on the PCL content. The increase in the PCL
content leads to the increase in thermal stability, hydrophobicity and appearance of
the microphase separation, but on the other side, it also leads to the decrease in storage
modulus in the rubbery plateau, crosslinking density and glass transition temperatures
of PUNs. This work shows that features of PUNs can be easily adjusted for
a specific application by careful selection of the SS and HS ratio.",
publisher = "Springer",
journal = "Polymer Bulletin",
title = "Composition-property relationship of polyurethane networks based on polycaprolactone diol",
doi = "10.1007/s00289-020-03473-0"
}

Stefanović, I., Džunuzović, J., Džunuzović, E. S., Dapčević, A., Šešlija, S., Balanč, B. D.,& Dobrzyńska-Mizera, M.. (2020). Composition-property relationship of polyurethane networks based on polycaprolactone diol. in Polymer Bulletin
Springer..
https://doi.org/10.1007/s00289-020-03473-0

Stefanović I, Džunuzović J, Džunuzović ES, Dapčević A, Šešlija S, Balanč BD, Dobrzyńska-Mizera M. Composition-property relationship of polyurethane networks based on polycaprolactone diol. in Polymer Bulletin. 2020;.
doi:10.1007/s00289-020-03473-0 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis S., Dapčević, Aleksandra, Šešlija, Sanja, Balanč, Bojana D., Dobrzyńska-Mizera, Monika, "Composition-property relationship of polyurethane networks based on polycaprolactone diol" in Polymer Bulletin (2020),
https://doi.org/10.1007/s00289-020-03473-0 . .

TY  - CONF
AU  - Sandić, Zvjezdana
AU  - Marković, Bojana
AU  - Mihajlović, Dijana
AU  - Miljanović, Ines
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6177
AB  - In this study, macroporous magnetic poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/bentonite composite functionalized with hexamet-hylene diamine (SGE/MB-HD) was tested as potential Cr(VI) sorbent from aqueous solutions. The sorption kinetics and adsorption isotherms were studied according to the data obtained in static experiments with different initial Cr(VI) concentration at room temperature and pH = 2.0. The Cr(VI) sorption obeys the pseudo-second-order model with definite influence of pore diffusion. Desorption experiments show that chromium anion sorption was reversible and the SGE/MB-HD was easily regenerated with 0.1 mol/dm3 NaOH.
PB  - Academy of Sciences and Arts of the Republic of Srpska
C3  - Programme and book of abstracts - XII International Scientific Conference - Contemporary Materials 2019, September 1-3 2019, Banja Luka,
T1  - Novel amino-functionalized magnetic polymer/bentonite composite  for chromium removal from aqueous solutions
SP  - 47
EP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_cer_6177
ER  - 

@conference{
author = "Sandić, Zvjezdana and Marković, Bojana and Mihajlović, Dijana and Miljanović, Ines and Stefanović, Ivan and Džunuzović, Jasna and Nastasović, Aleksandra",
year = "2019",
abstract = "In this study, macroporous magnetic poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/bentonite composite functionalized with hexamet-hylene diamine (SGE/MB-HD) was tested as potential Cr(VI) sorbent from aqueous solutions. The sorption kinetics and adsorption isotherms were studied according to the data obtained in static experiments with different initial Cr(VI) concentration at room temperature and pH = 2.0. The Cr(VI) sorption obeys the pseudo-second-order model with definite influence of pore diffusion. Desorption experiments show that chromium anion sorption was reversible and the SGE/MB-HD was easily regenerated with 0.1 mol/dm3 NaOH.",
publisher = "Academy of Sciences and Arts of the Republic of Srpska",
journal = "Programme and book of abstracts - XII International Scientific Conference - Contemporary Materials 2019, September 1-3 2019, Banja Luka,",
title = "Novel amino-functionalized magnetic polymer/bentonite composite  for chromium removal from aqueous solutions",
pages = "47-47",
url = "https://hdl.handle.net/21.15107/rcub_cer_6177"
}

Sandić, Z., Marković, B., Mihajlović, D., Miljanović, I., Stefanović, I., Džunuzović, J.,& Nastasović, A.. (2019). Novel amino-functionalized magnetic polymer/bentonite composite  for chromium removal from aqueous solutions. in Programme and book of abstracts - XII International Scientific Conference - Contemporary Materials 2019, September 1-3 2019, Banja Luka,
Academy of Sciences and Arts of the Republic of Srpska., 47-47.
https://hdl.handle.net/21.15107/rcub_cer_6177

Sandić Z, Marković B, Mihajlović D, Miljanović I, Stefanović I, Džunuzović J, Nastasović A. Novel amino-functionalized magnetic polymer/bentonite composite  for chromium removal from aqueous solutions. in Programme and book of abstracts - XII International Scientific Conference - Contemporary Materials 2019, September 1-3 2019, Banja Luka,. 2019;:47-47.
https://hdl.handle.net/21.15107/rcub_cer_6177 .

Sandić, Zvjezdana, Marković, Bojana, Mihajlović, Dijana, Miljanović, Ines, Stefanović, Ivan, Džunuzović, Jasna, Nastasović, Aleksandra, "Novel amino-functionalized magnetic polymer/bentonite composite  for chromium removal from aqueous solutions" in Programme and book of abstracts - XII International Scientific Conference - Contemporary Materials 2019, September 1-3 2019, Banja Luka, (2019):47-47,
https://hdl.handle.net/21.15107/rcub_cer_6177 .

TY  - CONF
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Popović, Aleksandar R.
AU  - Ignjatović, Nenad
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/7007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3325
AB  - Recent advances in material technologies have resulted in the preparation of novel polymer/clay composites with improved thermal, mechanical, optoelectronic/ magnetic properties and increased biodegradability [1]. In this study, six samples of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) nanocomposites with organically-modified montmorillonite clay Cloisite 30B® (C30B), were prepared via suspension copolymerization. In order to obtain nanocomposites with fine spherical beads of regular shape and satisfying thermal stability the optimization of the synthesis conditions was performed. Firstly, the influence of the poly(N-vinyl pyrrolidone) (PVP) quantity in the aqueous phase was varied (1, 3 and 5 wt.%) at a constant stirring rate of 250 rpm and constant clay content C30B (10 wt.%). In the second phase of the optimization of the preparation, samples with a constant composition of the composite reaction mixture (5 wt.% PVP and 10 wt.% C30B) at a stirring rate of 250, 325 and 400 rpm, were prepared. According to the obtained results, it was concluded that the optimal conditions for preparation of these composites are 5 wt.% of PVP and 400 rpm. The prepared nanocomposites were characterized with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) in air. The structure of the prepared nanocomposites was confirmed with FTIR spectroscopy. According to the obtained SEM microphotographs the fine spherical beads, with desired size and homogeneous morphology, were prepared. Furthermore, SEM analysis was also showed that clay nanoparticles are homogeneously dispersed both inside surface and cross-section area. The incorporation of C30B clay increased the thermal stability of the prepared polymer/clay nanocomposites in comparison to the pure PGME copolymer.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Optimization of the preparation of novel polymer/clay nanocomposites
SP  - 114
EP  - 114
UR  - https://hdl.handle.net/21.15107/rcub_dais_7007
ER  - 

@conference{
author = "Marković, Bojana and Stefanović, Ivan and Popović, Aleksandar R. and Ignjatović, Nenad and Nastasović, Aleksandra",
year = "2019",
abstract = "Recent advances in material technologies have resulted in the preparation of novel polymer/clay composites with improved thermal, mechanical, optoelectronic/ magnetic properties and increased biodegradability [1]. In this study, six samples of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) nanocomposites with organically-modified montmorillonite clay Cloisite 30B® (C30B), were prepared via suspension copolymerization. In order to obtain nanocomposites with fine spherical beads of regular shape and satisfying thermal stability the optimization of the synthesis conditions was performed. Firstly, the influence of the poly(N-vinyl pyrrolidone) (PVP) quantity in the aqueous phase was varied (1, 3 and 5 wt.%) at a constant stirring rate of 250 rpm and constant clay content C30B (10 wt.%). In the second phase of the optimization of the preparation, samples with a constant composition of the composite reaction mixture (5 wt.% PVP and 10 wt.% C30B) at a stirring rate of 250, 325 and 400 rpm, were prepared. According to the obtained results, it was concluded that the optimal conditions for preparation of these composites are 5 wt.% of PVP and 400 rpm. The prepared nanocomposites were characterized with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) in air. The structure of the prepared nanocomposites was confirmed with FTIR spectroscopy. According to the obtained SEM microphotographs the fine spherical beads, with desired size and homogeneous morphology, were prepared. Furthermore, SEM analysis was also showed that clay nanoparticles are homogeneously dispersed both inside surface and cross-section area. The incorporation of C30B clay increased the thermal stability of the prepared polymer/clay nanocomposites in comparison to the pure PGME copolymer.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Optimization of the preparation of novel polymer/clay nanocomposites",
pages = "114-114",
url = "https://hdl.handle.net/21.15107/rcub_dais_7007"
}

Marković, B., Stefanović, I., Popović, A. R., Ignjatović, N.,& Nastasović, A.. (2019). Optimization of the preparation of novel polymer/clay nanocomposites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 114-114.
https://hdl.handle.net/21.15107/rcub_dais_7007

Marković B, Stefanović I, Popović AR, Ignjatović N, Nastasović A. Optimization of the preparation of novel polymer/clay nanocomposites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:114-114.
https://hdl.handle.net/21.15107/rcub_dais_7007 .

Marković, Bojana, Stefanović, Ivan, Popović, Aleksandar R., Ignjatović, Nenad, Nastasović, Aleksandra, "Optimization of the preparation of novel polymer/clay nanocomposites" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):114-114,
https://hdl.handle.net/21.15107/rcub_dais_7007 .

TY  - JOUR
AU  - Džunuzović, Jasna
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis S.
AU  - Dapčević, Aleksandra
AU  - Šešlija, Sanja
AU  - Balanč, Bojana D.
AU  - Lamae, Giuseppe C.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3220
AB  - A series of environmentally friendly polyurethane (PU) networks based on polycaprolactone as soft segment (SS) and Boltorn® aliphatic hyperbranched polyester of the second pseudo generation as crosslinking agent was prepared by a two-step polymerization in solution. The chemical structure of the PU networks was analyzed by Fourier transform infrared spectroscopy, while XRD analysis revealed that these samples are amorphous. Swelling measurements, water absorption study, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis, mechanical tests and scanning electron microscope revealed that, swelling behavior, hydrophobicity, thermal and mechanical features and morphology of PU networks show clear dependence on polycaprolactone content. The increase of the SS content induced appearance of the microphase separated morphology, increase of thermal stability, elongation at break, hydrophobicity and swelling ability in tetrahydrofuran and toluene, but at the same time it is responsible for the decrease of crosslinking density, glass transition temperatures, rigidity, tensile strength and Young’s modulus of PU networks. Scanning electron microscope images of the fracture surfaces of PU networks show that their surface is rough, irregular, with flake-like structure, where size of flakes increases with increasing SS content. These results indicate that by choosing adequate SS content, PU coatings with diverse features based on polycaprolactone and Boltorn® aliphatic hyperbranched polyester can be designed for appropriate and desired application
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation
IS  - 137
SP  - 105305
DO  - 10.1016/j.porgcoat.2019.105305
ER  - 

@article{
author = "Džunuzović, Jasna and Stefanović, Ivan and Džunuzović, Enis S. and Dapčević, Aleksandra and Šešlija, Sanja and Balanč, Bojana D. and Lamae, Giuseppe C.",
year = "2019",
abstract = "A series of environmentally friendly polyurethane (PU) networks based on polycaprolactone as soft segment (SS) and Boltorn® aliphatic hyperbranched polyester of the second pseudo generation as crosslinking agent was prepared by a two-step polymerization in solution. The chemical structure of the PU networks was analyzed by Fourier transform infrared spectroscopy, while XRD analysis revealed that these samples are amorphous. Swelling measurements, water absorption study, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis, mechanical tests and scanning electron microscope revealed that, swelling behavior, hydrophobicity, thermal and mechanical features and morphology of PU networks show clear dependence on polycaprolactone content. The increase of the SS content induced appearance of the microphase separated morphology, increase of thermal stability, elongation at break, hydrophobicity and swelling ability in tetrahydrofuran and toluene, but at the same time it is responsible for the decrease of crosslinking density, glass transition temperatures, rigidity, tensile strength and Young’s modulus of PU networks. Scanning electron microscope images of the fracture surfaces of PU networks show that their surface is rough, irregular, with flake-like structure, where size of flakes increases with increasing SS content. These results indicate that by choosing adequate SS content, PU coatings with diverse features based on polycaprolactone and Boltorn® aliphatic hyperbranched polyester can be designed for appropriate and desired application",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation",
number = "137",
pages = "105305",
doi = "10.1016/j.porgcoat.2019.105305"
}

Džunuzović, J., Stefanović, I., Džunuzović, E. S., Dapčević, A., Šešlija, S., Balanč, B. D.,& Lamae, G. C.. (2019). Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation. in Progress in Organic Coatings
Elsevier.(137), 105305.
https://doi.org/10.1016/j.porgcoat.2019.105305

Džunuzović J, Stefanović I, Džunuzović ES, Dapčević A, Šešlija S, Balanč BD, Lamae GC. Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation. in Progress in Organic Coatings. 2019;(137):105305.
doi:10.1016/j.porgcoat.2019.105305 .

Džunuzović, Jasna, Stefanović, Ivan, Džunuzović, Enis S., Dapčević, Aleksandra, Šešlija, Sanja, Balanč, Bojana D., Lamae, Giuseppe C., "Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation" in Progress in Organic Coatings, no. 137 (2019):105305,
https://doi.org/10.1016/j.porgcoat.2019.105305 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Vasiljević-Radović, Dana
AU  - Ostojić, Sanja
AU  - Marković, Smilja B.
AU  - Pergal, Marija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2692
AB  - This work is focused on preparation of poly(urethane-siloxane)/titanium-dioxide nanocomposites (PUSNs) with enhanced features. PUSNs were prepared by the in situ polymerization reaction using titanium-dioxide as a nano-filler in different amounts (1, 2, 3 and 5 wt.%) with respect to the poly(urethane-siloxane) (PUS) matrix. PUS copolymer was based on α,ω-dihy-droxy-ethoxypropyl-poly(dimethylsiloxane), 4,4’-methylenediphenyldiisocyanate and 1,4-bu-tanediole. In order to investigate the influence of TiO 2 content on the structure, UV resistance, thermal properties, hydrophobicity and morphology of the prepared PUSNs, FTIR spectroscopy, UV-Vis diffuse-reflectance spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle measurements, surface free energy (SFE) analysis, water absorption, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were performed. The PUSNs showed excellent UV resistance, high hydrophobicity, low surface free energy and also higher thermal stability and rougher surface and cross-section relief structure as compared to the pure PUS copolymer. Based on the obtained results it can be concluded that prepared PUSNs could be potentially used as protective coatings. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.
AB  - Ovaj rad je fokusiran na pripremu poli(uretan-siloksan)/titan-dioksid nanokompozita (PUSN) sa poboljšanim svojstvima. PUSN nanokompoziti su 
bili pripremani postupkom in situ polimerizacije koristeći titan-dioksid kao nanopunilac u različitim količinama (1, 2, 3 i 5 mas.%) u odnosu na poli(ure tan-siloksansku) (PUS) matricu. PUS kopolimer je bio na bazi α,ω-dihi droksi-etoksipropil-poli(dimetilsiloksana), 4,4’-metilendifenildiizocijanata i 
1,4-butandiola. Sa ciljem da se ispita uticaj sadržaja TiO2 na strukturu, UV otpornost, termička svojstva, hidrofobnost i morfologiju dobijenih PUSN 
nanokompozita, primenjene su sledeće tehnike: FTIR spektroskopija, UV-Vis difuzna-refleksna spektroskopija, diferencijalna skenirajuća kalorimetrija (DSC), termogravimetrijska analiza (TGA), merenje kontaktnih uglova, određivanje slobodne površinske energije (SFE), određivanje apsorpcije vode, skenirajuća elektronska mikroskopija (SEM) i mikroskopija atomskih sila (AFM). Dobijeni PUSN uzorci su pokazali izuzetnu otpornost na UV 
zračenje, visoku hidrofobnost, nisku slobodnu površinsku energiju i takođe poboljšanu termičku stabilnost i hrapaviju površinsku i unutrašnju reljefnu 
strukturu u odnosu na čist PUS kopolimer. Na osnovu dobijenih rezultata zaključeno je da se dobijeni PUSN nanokompoziti mogu potencijalno koristiti kao zaštitni premazi.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska Industrija
T1  - Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites
VL  - 73
IS  - 1
SP  - 13
EP  - 24
DO  - 10.2298/HEMIND180530002S
ER  - 

@article{
author = "Stefanović, Ivan and Dostanić, Jasmina and Lončarević, Davor and Vasiljević-Radović, Dana and Ostojić, Sanja and Marković, Smilja B. and Pergal, Marija",
year = "2019",
abstract = "This work is focused on preparation of poly(urethane-siloxane)/titanium-dioxide nanocomposites (PUSNs) with enhanced features. PUSNs were prepared by the in situ polymerization reaction using titanium-dioxide as a nano-filler in different amounts (1, 2, 3 and 5 wt.%) with respect to the poly(urethane-siloxane) (PUS) matrix. PUS copolymer was based on α,ω-dihy-droxy-ethoxypropyl-poly(dimethylsiloxane), 4,4’-methylenediphenyldiisocyanate and 1,4-bu-tanediole. In order to investigate the influence of TiO 2 content on the structure, UV resistance, thermal properties, hydrophobicity and morphology of the prepared PUSNs, FTIR spectroscopy, UV-Vis diffuse-reflectance spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle measurements, surface free energy (SFE) analysis, water absorption, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were performed. The PUSNs showed excellent UV resistance, high hydrophobicity, low surface free energy and also higher thermal stability and rougher surface and cross-section relief structure as compared to the pure PUS copolymer. Based on the obtained results it can be concluded that prepared PUSNs could be potentially used as protective coatings. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved., Ovaj rad je fokusiran na pripremu poli(uretan-siloksan)/titan-dioksid nanokompozita (PUSN) sa poboljšanim svojstvima. PUSN nanokompoziti su 
bili pripremani postupkom in situ polimerizacije koristeći titan-dioksid kao nanopunilac u različitim količinama (1, 2, 3 i 5 mas.%) u odnosu na poli(ure tan-siloksansku) (PUS) matricu. PUS kopolimer je bio na bazi α,ω-dihi droksi-etoksipropil-poli(dimetilsiloksana), 4,4’-metilendifenildiizocijanata i 
1,4-butandiola. Sa ciljem da se ispita uticaj sadržaja TiO2 na strukturu, UV otpornost, termička svojstva, hidrofobnost i morfologiju dobijenih PUSN 
nanokompozita, primenjene su sledeće tehnike: FTIR spektroskopija, UV-Vis difuzna-refleksna spektroskopija, diferencijalna skenirajuća kalorimetrija (DSC), termogravimetrijska analiza (TGA), merenje kontaktnih uglova, određivanje slobodne površinske energije (SFE), određivanje apsorpcije vode, skenirajuća elektronska mikroskopija (SEM) i mikroskopija atomskih sila (AFM). Dobijeni PUSN uzorci su pokazali izuzetnu otpornost na UV 
zračenje, visoku hidrofobnost, nisku slobodnu površinsku energiju i takođe poboljšanu termičku stabilnost i hrapaviju površinsku i unutrašnju reljefnu 
strukturu u odnosu na čist PUS kopolimer. Na osnovu dobijenih rezultata zaključeno je da se dobijeni PUSN nanokompoziti mogu potencijalno koristiti kao zaštitni premazi.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska Industrija",
title = "Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites",
volume = "73",
number = "1",
pages = "13-24",
doi = "10.2298/HEMIND180530002S"
}

Stefanović, I., Dostanić, J., Lončarević, D., Vasiljević-Radović, D., Ostojić, S., Marković, S. B.,& Pergal, M.. (2019). Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites. in Hemijska Industrija
Belgrade : Association of the Chemical Engineers of Serbia., 73(1), 13-24.
https://doi.org/10.2298/HEMIND180530002S

Stefanović I, Dostanić J, Lončarević D, Vasiljević-Radović D, Ostojić S, Marković SB, Pergal M. Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites. in Hemijska Industrija. 2019;73(1):13-24.
doi:10.2298/HEMIND180530002S .

Stefanović, Ivan, Dostanić, Jasmina, Lončarević, Davor, Vasiljević-Radović, Dana, Ostojić, Sanja, Marković, Smilja B., Pergal, Marija, "Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites" in Hemijska Industrija, 73, no. 1 (2019):13-24,
https://doi.org/10.2298/HEMIND180530002S . .

TY  - CONF
AU  - Stefanović, Ivan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6202
AB  - Series of poly(urethane-siloxane) nanocomposites (PUNC) was prepared with the in situ
polymerization, based on 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the
comonomers of the hard segments (HS) and α,ω–dihydroxy ethoxy
poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS). PUNC series
was composed of five samples of different HS contents (from 10 to 50 wt.%).
Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller in the
amount of 1 wt.% (relative to the total weight of reactants), within prepared PUNCs. The
effect of the addition of nanoclay on structure, surface properties and morphology of
these PUNCs was investigated.
The obtained FTIR spectra confirm successful preparation and incorporation of nanoclay
particles inside of PUNC samples with different compositions i.e HS/SS ratio.
Incorporation of the EO-PDMS segments and nanoclay particles i.e. enrichment of the
surface of these PUNC films with Si and O atoms allows highly hydrophobic surface of
the PUNCs. Samples with the highest content of SS had the best hydrophobicity and the
highest contact angle values with water, formamide and diiodomethane. According to
the SEM images PUNCs exhibited two-phase morphology that was more pronounced in
samples with higher HS content due to the higher level of microphase separation.
Moreover, the addition of nanoclay particles has led to the appearance of more prominent
cross-sectional morphology [1,2].
PB  - Belgrade : Serbian Chemical Society
PB  - Belgrade : Serbian Young Chemists’ Club
C3  - Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd  November 2019, Belgrade
T1  - Nanoclay reinforcement of poly(urethane-siloxane) copolymers
SP  - 35
EP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_cer_6202
ER  - 

@conference{
author = "Stefanović, Ivan",
year = "2019",
abstract = "Series of poly(urethane-siloxane) nanocomposites (PUNC) was prepared with the in situ
polymerization, based on 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the
comonomers of the hard segments (HS) and α,ω–dihydroxy ethoxy
poly(dimethylsiloxane) (EO-PDMS) as the part of the soft segments (SS). PUNC series
was composed of five samples of different HS contents (from 10 to 50 wt.%).
Organomodified montmorillonite clay (Cloisite 30B®) was used as nanofiller in the
amount of 1 wt.% (relative to the total weight of reactants), within prepared PUNCs. The
effect of the addition of nanoclay on structure, surface properties and morphology of
these PUNCs was investigated.
The obtained FTIR spectra confirm successful preparation and incorporation of nanoclay
particles inside of PUNC samples with different compositions i.e HS/SS ratio.
Incorporation of the EO-PDMS segments and nanoclay particles i.e. enrichment of the
surface of these PUNC films with Si and O atoms allows highly hydrophobic surface of
the PUNCs. Samples with the highest content of SS had the best hydrophobicity and the
highest contact angle values with water, formamide and diiodomethane. According to
the SEM images PUNCs exhibited two-phase morphology that was more pronounced in
samples with higher HS content due to the higher level of microphase separation.
Moreover, the addition of nanoclay particles has led to the appearance of more prominent
cross-sectional morphology [1,2].",
publisher = "Belgrade : Serbian Chemical Society, Belgrade : Serbian Young Chemists’ Club",
journal = "Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd  November 2019, Belgrade",
title = "Nanoclay reinforcement of poly(urethane-siloxane) copolymers",
pages = "35-35",
url = "https://hdl.handle.net/21.15107/rcub_cer_6202"
}

Stefanović, I.. (2019). Nanoclay reinforcement of poly(urethane-siloxane) copolymers. in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd  November 2019, Belgrade
Belgrade : Serbian Chemical Society., 35-35.
https://hdl.handle.net/21.15107/rcub_cer_6202

Stefanović I. Nanoclay reinforcement of poly(urethane-siloxane) copolymers. in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd  November 2019, Belgrade. 2019;:35-35.
https://hdl.handle.net/21.15107/rcub_cer_6202 .

Stefanović, Ivan, "Nanoclay reinforcement of poly(urethane-siloxane) copolymers" in Book of abstracts - 7th Conference of the Young Chemists of Serbia, 2nd  November 2019, Belgrade (2019):35-35,
https://hdl.handle.net/21.15107/rcub_cer_6202 .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Marković, Bojana
AU  - Nastasović, Aleksandra
AU  - Pergal, Marija
AU  - Džunuzović, Jasna
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6173
AB  - Segmented polyurethanes (SPU) are multiblock copolymers consisted of hard (HS) and soft segments (SS). HS usually form crystalline domains that are responsible for good mechanical properties, while SS represent amorphous matrix that contributes to good elastomeric properties, hydrophobicity and inertness of the SPUs. Furthermore, the morphology of the SPUs is one of the main factors that determine their physical and chemical properties. Moreover, thermodynamic incompatibility between HS and SS leads to the formation of microphase separation within the 
SPUs. Properties of SPUs mostly come from their different composition and microphase separation between segments.
PB  - Serbian Academy of Sciences and Arts
PB  - Faculty of Technology and Metallurgy,  University of Belgrade
C3  - Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia
T1  - Morphology of Poly(urethane-siloxane)/Montmorillonite Nanocomposites
SP  - 234
EP  - 236
UR  - https://hdl.handle.net/21.15107/rcub_cer_6173
ER  - 

@conference{
author = "Stefanović, Ivan and Marković, Bojana and Nastasović, Aleksandra and Pergal, Marija and Džunuzović, Jasna",
year = "2018",
abstract = "Segmented polyurethanes (SPU) are multiblock copolymers consisted of hard (HS) and soft segments (SS). HS usually form crystalline domains that are responsible for good mechanical properties, while SS represent amorphous matrix that contributes to good elastomeric properties, hydrophobicity and inertness of the SPUs. Furthermore, the morphology of the SPUs is one of the main factors that determine their physical and chemical properties. Moreover, thermodynamic incompatibility between HS and SS leads to the formation of microphase separation within the 
SPUs. Properties of SPUs mostly come from their different composition and microphase separation between segments.",
publisher = "Serbian Academy of Sciences and Arts, Faculty of Technology and Metallurgy,  University of Belgrade",
journal = "Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia",
title = "Morphology of Poly(urethane-siloxane)/Montmorillonite Nanocomposites",
pages = "234-236",
url = "https://hdl.handle.net/21.15107/rcub_cer_6173"
}

Stefanović, I., Marković, B., Nastasović, A., Pergal, M.,& Džunuzović, J.. (2018). Morphology of Poly(urethane-siloxane)/Montmorillonite Nanocomposites. in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia
Serbian Academy of Sciences and Arts., 234-236.
https://hdl.handle.net/21.15107/rcub_cer_6173

Stefanović I, Marković B, Nastasović A, Pergal M, Džunuzović J. Morphology of Poly(urethane-siloxane)/Montmorillonite Nanocomposites. in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia. 2018;:234-236.
https://hdl.handle.net/21.15107/rcub_cer_6173 .

Stefanović, Ivan, Marković, Bojana, Nastasović, Aleksandra, Pergal, Marija, Džunuzović, Jasna, "Morphology of Poly(urethane-siloxane)/Montmorillonite Nanocomposites" in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia (2018):234-236,
https://hdl.handle.net/21.15107/rcub_cer_6173 .