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  - 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 . .