TY  - CONF
AU  - Pagnacco, Maja
AU  - Simović Pavlović, Marina
AU  - Radulović, Aleksandra
AU  - Bokić, Bojana
AU  - Vasiljević, Darko
AU  - Kolarić, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6973
AB  - In this study, the interferometric (holographic) approach is used to unveil the dynamics of the phase transition, e.g., the formation of solid iodine in the Briggs-Rauscher (BR) non-equilibrium system. Subsequently, after deterministic oscillatory dynamics this system undergoes random transition from state I (low iodide and iodine concentration) to state II (high iodide and iodine concentration, with the formation of solid iodine).
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : Book of Abstracts; August 28 - September 1, 2023; Belgrade
T1  - Revealing non-equilibrium dynamics by holography: The case of Briggs-Rauscher reaction
SP  - 138
EP  - 138
UR  - https://hdl.handle.net/21.15107/rcub_cer_6973
ER  - 

@conference{
author = "Pagnacco, Maja and Simović Pavlović, Marina and Radulović, Aleksandra and Bokić, Bojana and Vasiljević, Darko and Kolarić, Branko",
year = "2023",
abstract = "In this study, the interferometric (holographic) approach is used to unveil the dynamics of the phase transition, e.g., the formation of solid iodine in the Briggs-Rauscher (BR) non-equilibrium system. Subsequently, after deterministic oscillatory dynamics this system undergoes random transition from state I (low iodide and iodine concentration) to state II (high iodide and iodine concentration, with the formation of solid iodine).",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : Book of Abstracts; August 28 - September 1, 2023; Belgrade",
title = "Revealing non-equilibrium dynamics by holography: The case of Briggs-Rauscher reaction",
pages = "138-138",
url = "https://hdl.handle.net/21.15107/rcub_cer_6973"
}

Pagnacco, M., Simović Pavlović, M., Radulović, A., Bokić, B., Vasiljević, D.,& Kolarić, B.. (2023). Revealing non-equilibrium dynamics by holography: The case of Briggs-Rauscher reaction. in PHOTONICA2023 : 9th International School and Conference on Photonics : Book of Abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 138-138.
https://hdl.handle.net/21.15107/rcub_cer_6973

Pagnacco M, Simović Pavlović M, Radulović A, Bokić B, Vasiljević D, Kolarić B. Revealing non-equilibrium dynamics by holography: The case of Briggs-Rauscher reaction. in PHOTONICA2023 : 9th International School and Conference on Photonics : Book of Abstracts; August 28 - September 1, 2023; Belgrade. 2023;:138-138.
https://hdl.handle.net/21.15107/rcub_cer_6973 .

Pagnacco, Maja, Simović Pavlović, Marina, Radulović, Aleksandra, Bokić, Bojana, Vasiljević, Darko, Kolarić, Branko, "Revealing non-equilibrium dynamics by holography: The case of Briggs-Rauscher reaction" in PHOTONICA2023 : 9th International School and Conference on Photonics : Book of Abstracts; August 28 - September 1, 2023; Belgrade (2023):138-138,
https://hdl.handle.net/21.15107/rcub_cer_6973 .

TY  - CONF
AU  - Panić, Vesna
AU  - Jovanović, Jelena D.
AU  - Savić, Sanja I.
AU  - Marković, Maja D.
AU  - Radulović, Aleksandra
AU  - Pantić, Olga
AU  - Adnađević, Borivoj K.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7403
AB  - The preparation of zeolite rich polymeric materials presents a challenge due to the zeolite settlingduring synthesis, poor miscibility, the phase separation and generally insufficient interactionsbetween polymers and zeolites. Combination of LTA, i.e. MFI, zeolite and poly(methacrylic acid) in theform of soft hydrogel network provided the stabilization of the zeolite particles and enabled synthesisof composite hydrogels with very high zeolite concentrations (26-52 mass%).The investigated morphological, mechanical and primary structural properties, water swelling abilityand thermal stability revealed high dependence on zeolite concentration and type. Zeolite particleswere uniformly dispersed in PMAA matrix as confirmed by SEM and there was no agglomeration orzeolite leaching despite very high concentrations. FTIR spectra disclosed the existence of functionalgroups of PMAA network and both zeolite types that interacted mutually and led to increasedcrosslinking density. The established interactions changed the PMAA chain dynamics around theparticles, especially of the LTA type, as showed by XRD. Having much more surface groups capable togenerate interaction with PMAA, LTA zeolite stronger affected all of the investigated properties.Composites’ mechanics was improved both in dry and swollen state compared to the PMAA hydrogel(up to 21.8 times for the sample with the highest LTA concentration). Thermal stability of thecomposites increased with increasing zeolite concentration.The composition-property correlations were determined making this work the base for furtherdevelopment of tailor-made zeolite-PMAA composite hydrogels aimed for specific application.Composites were tested as low-cost, regenerative, environmentally friendly sorbents and showedbetter removal of cationic dye compared to both components (PMAA and zeolite) alone.
PB  - Yuktan Technologies
C3  - Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain
T1  - Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_cer_7403
ER  - 

@conference{
author = "Panić, Vesna and Jovanović, Jelena D. and Savić, Sanja I. and Marković, Maja D. and Radulović, Aleksandra and Pantić, Olga and Adnađević, Borivoj K.",
year = "2023",
abstract = "The preparation of zeolite rich polymeric materials presents a challenge due to the zeolite settlingduring synthesis, poor miscibility, the phase separation and generally insufficient interactionsbetween polymers and zeolites. Combination of LTA, i.e. MFI, zeolite and poly(methacrylic acid) in theform of soft hydrogel network provided the stabilization of the zeolite particles and enabled synthesisof composite hydrogels with very high zeolite concentrations (26-52 mass%).The investigated morphological, mechanical and primary structural properties, water swelling abilityand thermal stability revealed high dependence on zeolite concentration and type. Zeolite particleswere uniformly dispersed in PMAA matrix as confirmed by SEM and there was no agglomeration orzeolite leaching despite very high concentrations. FTIR spectra disclosed the existence of functionalgroups of PMAA network and both zeolite types that interacted mutually and led to increasedcrosslinking density. The established interactions changed the PMAA chain dynamics around theparticles, especially of the LTA type, as showed by XRD. Having much more surface groups capable togenerate interaction with PMAA, LTA zeolite stronger affected all of the investigated properties.Composites’ mechanics was improved both in dry and swollen state compared to the PMAA hydrogel(up to 21.8 times for the sample with the highest LTA concentration). Thermal stability of thecomposites increased with increasing zeolite concentration.The composition-property correlations were determined making this work the base for furtherdevelopment of tailor-made zeolite-PMAA composite hydrogels aimed for specific application.Composites were tested as low-cost, regenerative, environmentally friendly sorbents and showedbetter removal of cationic dye compared to both components (PMAA and zeolite) alone.",
publisher = "Yuktan Technologies",
journal = "Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain",
title = "Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_cer_7403"
}

Panić, V., Jovanović, J. D., Savić, S. I., Marković, M. D., Radulović, A., Pantić, O.,& Adnađević, B. K.. (2023). Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels. in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain
Yuktan Technologies., 67-67.
https://hdl.handle.net/21.15107/rcub_cer_7403

Panić V, Jovanović JD, Savić SI, Marković MD, Radulović A, Pantić O, Adnađević BK. Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels. in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain. 2023;:67-67.
https://hdl.handle.net/21.15107/rcub_cer_7403 .

Panić, Vesna, Jovanović, Jelena D., Savić, Sanja I., Marković, Maja D., Radulović, Aleksandra, Pantić, Olga, Adnađević, Borivoj K., "Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels" in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain (2023):67-67,
https://hdl.handle.net/21.15107/rcub_cer_7403 .

TY  - CONF
AU  - Simović-Pavlović, Marina
AU  - Maksimović, Tijana
AU  - Maksimović, Jelena
AU  - Senćanski, Jelena
AU  - Radulović, Aleksandra
AU  - Pagnacco, Maja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7355
AB  - Thermal monitoring of a Briggs-Rauscher oscillatory reaction with a phase transition or  the state I (low concentration of iodide and iodine) to the state II (high concentration of  iodide and iodine) transition with formation of new solid iodine phase is presented. This  is the very first time that an oscillatory reaction and the state I to state II transition have  been monitored using a thermal camera. It should be pointed out, that the BR reaction  solution is not homogenized by stirring, and that only oxygen production influence the  solution mixing. Therefore, the analysis was done at three sampling points on the cuvette  where temperature change over time was observed, and compared with average  temperature distribution. The first point is chosen to correspond to the top of the solution  in the cuvette, followed by one in the middle of the volume and one at the very bottom of  the cuvette. Although the state I to the state II transition itself is not reproducible  (investigated transition exhibits crazy clock behavior), the overall temperature pattern has shown a reproducible character.
PB  - Faculty of Management Herceg Novi
C3  - Second International Conference on Advances in Science and Technology - COAST, Proceedings, 31 May - 03 June, Herzeg Novi, Montenegro
T1  - Temperature pattern measurements in Briggs-Rauscher oscillaotry reaction with state I to state II transition
SP  - 411
EP  - 416
UR  - https://hdl.handle.net/21.15107/rcub_cer_7355
ER  - 

@conference{
author = "Simović-Pavlović, Marina and Maksimović, Tijana and Maksimović, Jelena and Senćanski, Jelena and Radulović, Aleksandra and Pagnacco, Maja",
year = "2023",
abstract = "Thermal monitoring of a Briggs-Rauscher oscillatory reaction with a phase transition or  the state I (low concentration of iodide and iodine) to the state II (high concentration of  iodide and iodine) transition with formation of new solid iodine phase is presented. This  is the very first time that an oscillatory reaction and the state I to state II transition have  been monitored using a thermal camera. It should be pointed out, that the BR reaction  solution is not homogenized by stirring, and that only oxygen production influence the  solution mixing. Therefore, the analysis was done at three sampling points on the cuvette  where temperature change over time was observed, and compared with average  temperature distribution. The first point is chosen to correspond to the top of the solution  in the cuvette, followed by one in the middle of the volume and one at the very bottom of  the cuvette. Although the state I to the state II transition itself is not reproducible  (investigated transition exhibits crazy clock behavior), the overall temperature pattern has shown a reproducible character.",
publisher = "Faculty of Management Herceg Novi",
journal = "Second International Conference on Advances in Science and Technology - COAST, Proceedings, 31 May - 03 June, Herzeg Novi, Montenegro",
title = "Temperature pattern measurements in Briggs-Rauscher oscillaotry reaction with state I to state II transition",
pages = "411-416",
url = "https://hdl.handle.net/21.15107/rcub_cer_7355"
}

Simović-Pavlović, M., Maksimović, T., Maksimović, J., Senćanski, J., Radulović, A.,& Pagnacco, M.. (2023). Temperature pattern measurements in Briggs-Rauscher oscillaotry reaction with state I to state II transition. in Second International Conference on Advances in Science and Technology - COAST, Proceedings, 31 May - 03 June, Herzeg Novi, Montenegro
Faculty of Management Herceg Novi., 411-416.
https://hdl.handle.net/21.15107/rcub_cer_7355

Simović-Pavlović M, Maksimović T, Maksimović J, Senćanski J, Radulović A, Pagnacco M. Temperature pattern measurements in Briggs-Rauscher oscillaotry reaction with state I to state II transition. in Second International Conference on Advances in Science and Technology - COAST, Proceedings, 31 May - 03 June, Herzeg Novi, Montenegro. 2023;:411-416.
https://hdl.handle.net/21.15107/rcub_cer_7355 .

Simović-Pavlović, Marina, Maksimović, Tijana, Maksimović, Jelena, Senćanski, Jelena, Radulović, Aleksandra, Pagnacco, Maja, "Temperature pattern measurements in Briggs-Rauscher oscillaotry reaction with state I to state II transition" in Second International Conference on Advances in Science and Technology - COAST, Proceedings, 31 May - 03 June, Herzeg Novi, Montenegro (2023):411-416,
https://hdl.handle.net/21.15107/rcub_cer_7355 .

TY  - CONF
AU  - Simović Pavlović, Marina
AU  - Nestorović, Katarina
AU  - Radulović, Aleksandra
AU  - Pagnacco, Maja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7397
AB  - The corrugation of the structure is a special property of the material that has a great influence on almost all other characteristics of the same. The connection between materials based on the corrugation of natural structures such as Apatura butterfly wings and its examination (the six samples of same species) by the method of holographic interferometry (with four different wavelengths of laser radiation) is presented in this paper. The concept of material's corrugation elasticity is presented as well as the advantages of this concept. The holographic method was implemented as appropriate for monitoring the structure dynamics at the nanoscale. Finally, the important factor that impacts the elasticity of the corrugation of the material lies in the optical factors of the environment is emphasized, i.e., in the light of laser radiation that structure interferes with. A completely non-linear dependence on the wavelengths of light is shown, where for wavelengths of 532 nm and 660 nm the elasticity of the corrugation is observed, while for 450 nm and 980 nm a plastic deformation of the corrugation is observed. These preliminary studies open new possibilities in the synthesis and testing of different materials and monitoring of their dynamics in real time.
PB  - Serbian Society of Mechanics
C3  - 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
T1  - Corrugation elasticity as a new property of nanostructured material: holographic analysis of apatura butterfly wings
SP  - 128
EP  - 135
UR  - https://hdl.handle.net/21.15107/rcub_cer_7397
ER  - 

@conference{
author = "Simović Pavlović, Marina and Nestorović, Katarina and Radulović, Aleksandra and Pagnacco, Maja",
year = "2023",
abstract = "The corrugation of the structure is a special property of the material that has a great influence on almost all other characteristics of the same. The connection between materials based on the corrugation of natural structures such as Apatura butterfly wings and its examination (the six samples of same species) by the method of holographic interferometry (with four different wavelengths of laser radiation) is presented in this paper. The concept of material's corrugation elasticity is presented as well as the advantages of this concept. The holographic method was implemented as appropriate for monitoring the structure dynamics at the nanoscale. Finally, the important factor that impacts the elasticity of the corrugation of the material lies in the optical factors of the environment is emphasized, i.e., in the light of laser radiation that structure interferes with. A completely non-linear dependence on the wavelengths of light is shown, where for wavelengths of 532 nm and 660 nm the elasticity of the corrugation is observed, while for 450 nm and 980 nm a plastic deformation of the corrugation is observed. These preliminary studies open new possibilities in the synthesis and testing of different materials and monitoring of their dynamics in real time.",
publisher = "Serbian Society of Mechanics",
journal = "9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia",
title = "Corrugation elasticity as a new property of nanostructured material: holographic analysis of apatura butterfly wings",
pages = "128-135",
url = "https://hdl.handle.net/21.15107/rcub_cer_7397"
}

Simović Pavlović, M., Nestorović, K., Radulović, A.,& Pagnacco, M.. (2023). Corrugation elasticity as a new property of nanostructured material: holographic analysis of apatura butterfly wings. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
Serbian Society of Mechanics., 128-135.
https://hdl.handle.net/21.15107/rcub_cer_7397

Simović Pavlović M, Nestorović K, Radulović A, Pagnacco M. Corrugation elasticity as a new property of nanostructured material: holographic analysis of apatura butterfly wings. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia. 2023;:128-135.
https://hdl.handle.net/21.15107/rcub_cer_7397 .

Simović Pavlović, Marina, Nestorović, Katarina, Radulović, Aleksandra, Pagnacco, Maja, "Corrugation elasticity as a new property of nanostructured material: holographic analysis of apatura butterfly wings" in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia (2023):128-135,
https://hdl.handle.net/21.15107/rcub_cer_7397 .

TY  - CONF
AU  - Simović-Pavlović, Marina
AU  - Nestorović, Katarina
AU  - Janković, Darko
AU  - Radulović, Aleksandra
AU  - Pagnacco, Maja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7398
AB  - A variety of biophotonic species structures have been identified, as well as matches of certain types. The properties of these various morphologies are acknowledged as suitable for defining some new nanomaterials with broad applications. Military materials were found to be an especially interesting field of application. Individual structures and their application directions, as well as possible manufacturing techniques and materials, are defined.
PB  - Serbian Society of Mechanics
C3  - 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
T1  - Different butterfly wing structures as an inspiration for military application
SP  - 136
EP  - 141
UR  - https://hdl.handle.net/21.15107/rcub_cer_7398
ER  - 

@conference{
author = "Simović-Pavlović, Marina and Nestorović, Katarina and Janković, Darko and Radulović, Aleksandra and Pagnacco, Maja",
year = "2023",
abstract = "A variety of biophotonic species structures have been identified, as well as matches of certain types. The properties of these various morphologies are acknowledged as suitable for defining some new nanomaterials with broad applications. Military materials were found to be an especially interesting field of application. Individual structures and their application directions, as well as possible manufacturing techniques and materials, are defined.",
publisher = "Serbian Society of Mechanics",
journal = "9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia",
title = "Different butterfly wing structures as an inspiration for military application",
pages = "136-141",
url = "https://hdl.handle.net/21.15107/rcub_cer_7398"
}

Simović-Pavlović, M., Nestorović, K., Janković, D., Radulović, A.,& Pagnacco, M.. (2023). Different butterfly wing structures as an inspiration for military application. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
Serbian Society of Mechanics., 136-141.
https://hdl.handle.net/21.15107/rcub_cer_7398

Simović-Pavlović M, Nestorović K, Janković D, Radulović A, Pagnacco M. Different butterfly wing structures as an inspiration for military application. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia. 2023;:136-141.
https://hdl.handle.net/21.15107/rcub_cer_7398 .

Simović-Pavlović, Marina, Nestorović, Katarina, Janković, Darko, Radulović, Aleksandra, Pagnacco, Maja, "Different butterfly wing structures as an inspiration for military application" in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia (2023):136-141,
https://hdl.handle.net/21.15107/rcub_cer_7398 .

TY  - JOUR
AU  - Simović Pavlović, Marina
AU  - Pagnacco, Maja
AU  - Radulović, Aleksandra
AU  - Sencanski, Jelena
AU  - Markovic, M
PY  - 2023
UR  - http://silverstripe.fkit.hr/kui/issue-archive/article/1027
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6881
AB  - This mini review discusses the phenomenon of thermophoresis, also known as the thermophoretic effect. Thermophoretic
effect arises from the combination of a temperature gradient and particles of very small dimensions, on the order of magnitude
of the mean free path of the molecules of the surrounding gas. Despite being a little-known effect, it is critical to many physical
and chemical processes and for characterising the properties of nanostructured materials that could be used in industry for
sensing applications. A description and definition of otherwise very similar thermophoresis terms is provided, as well as a brief
overview of the literature on this topic, with a focus on research in the twenty-first century
PB  - Croatian Society of Chemical Engineers (CSCE)
PB  - Croatian Chemical Society (CCS)
T2  - Kemija u industriji
T1  - Thermophoresis or When Small Objects Meet Temperature Gradient: Numerous Applications
VL  - 72
IS  - 11-12
SP  - 693
EP  - 699
DO  - 10.15255/KUI.2023.015
ER  - 

@article{
author = "Simović Pavlović, Marina and Pagnacco, Maja and Radulović, Aleksandra and Sencanski, Jelena and Markovic, M",
year = "2023",
abstract = "This mini review discusses the phenomenon of thermophoresis, also known as the thermophoretic effect. Thermophoretic
effect arises from the combination of a temperature gradient and particles of very small dimensions, on the order of magnitude
of the mean free path of the molecules of the surrounding gas. Despite being a little-known effect, it is critical to many physical
and chemical processes and for characterising the properties of nanostructured materials that could be used in industry for
sensing applications. A description and definition of otherwise very similar thermophoresis terms is provided, as well as a brief
overview of the literature on this topic, with a focus on research in the twenty-first century",
publisher = "Croatian Society of Chemical Engineers (CSCE), Croatian Chemical Society (CCS)",
journal = "Kemija u industriji",
title = "Thermophoresis or When Small Objects Meet Temperature Gradient: Numerous Applications",
volume = "72",
number = "11-12",
pages = "693-699",
doi = "10.15255/KUI.2023.015"
}

Simović Pavlović, M., Pagnacco, M., Radulović, A., Sencanski, J.,& Markovic, M.. (2023). Thermophoresis or When Small Objects Meet Temperature Gradient: Numerous Applications. in Kemija u industriji
Croatian Society of Chemical Engineers (CSCE)., 72(11-12), 693-699.
https://doi.org/10.15255/KUI.2023.015

Simović Pavlović M, Pagnacco M, Radulović A, Sencanski J, Markovic M. Thermophoresis or When Small Objects Meet Temperature Gradient: Numerous Applications. in Kemija u industriji. 2023;72(11-12):693-699.
doi:10.15255/KUI.2023.015 .

Simović Pavlović, Marina, Pagnacco, Maja, Radulović, Aleksandra, Sencanski, Jelena, Markovic, M, "Thermophoresis or When Small Objects Meet Temperature Gradient: Numerous Applications" in Kemija u industriji, 72, no. 11-12 (2023):693-699,
https://doi.org/10.15255/KUI.2023.015 . .

TY  - JOUR
AU  - Simović Pavlović, Marina
AU  - Pagnacco, Maja
AU  - Mara, Dimitrije
AU  - Radulović, Aleksandra
AU  - Bokić, Bojana
AU  - Vasiljević, Darko
AU  - Kolarić, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7032
AB  - The material’s size and shape influence its physical, chemical and mechanical properties. This study describes an investigation of natural photonic structure of the butterfly’s wing, mainly composed of chitin. The effect of corrugations at the nanoscale on material’s optical response is unambiguously revealed in the presented thermal measurements. Furthermore, the presented study shows the possibility of exploiting holography to monitor dynamics in situ.
AB  - Облик и величина материјала утичу на његове физичке, хемијске и механичке особине. Ова студија описује проучавање природних фотонских структура, крила лептира која се претежно састоје од полимера хитина. Ефекат нано коругације на оптички одговор материјала је презентован кроз термална мерења. Такође је представљена могућност примене холографске методе за праћење динамике in situ.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Thermal investigation of material derived from the species Apatura iris
T1  - Termalno ispitivanje materijala iz leptira Apatura iris
VL  - 88
IS  - 11
SP  - 1119
EP  - 1123
DO  - 10.2298/JSC230327042P
ER  - 

@article{
author = "Simović Pavlović, Marina and Pagnacco, Maja and Mara, Dimitrije and Radulović, Aleksandra and Bokić, Bojana and Vasiljević, Darko and Kolarić, Branko",
year = "2023",
abstract = "The material’s size and shape influence its physical, chemical and mechanical properties. This study describes an investigation of natural photonic structure of the butterfly’s wing, mainly composed of chitin. The effect of corrugations at the nanoscale on material’s optical response is unambiguously revealed in the presented thermal measurements. Furthermore, the presented study shows the possibility of exploiting holography to monitor dynamics in situ., Облик и величина материјала утичу на његове физичке, хемијске и механичке особине. Ова студија описује проучавање природних фотонских структура, крила лептира која се претежно састоје од полимера хитина. Ефекат нано коругације на оптички одговор материјала је презентован кроз термална мерења. Такође је представљена могућност примене холографске методе за праћење динамике in situ.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Thermal investigation of material derived from the species Apatura iris, Termalno ispitivanje materijala iz leptira Apatura iris",
volume = "88",
number = "11",
pages = "1119-1123",
doi = "10.2298/JSC230327042P"
}

Simović Pavlović, M., Pagnacco, M., Mara, D., Radulović, A., Bokić, B., Vasiljević, D.,& Kolarić, B.. (2023). Thermal investigation of material derived from the species Apatura iris. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 88(11), 1119-1123.
https://doi.org/10.2298/JSC230327042P

Simović Pavlović M, Pagnacco M, Mara D, Radulović A, Bokić B, Vasiljević D, Kolarić B. Thermal investigation of material derived from the species Apatura iris. in Journal of the Serbian Chemical Society. 2023;88(11):1119-1123.
doi:10.2298/JSC230327042P .

Simović Pavlović, Marina, Pagnacco, Maja, Mara, Dimitrije, Radulović, Aleksandra, Bokić, Bojana, Vasiljević, Darko, Kolarić, Branko, "Thermal investigation of material derived from the species Apatura iris" in Journal of the Serbian Chemical Society, 88, no. 11 (2023):1119-1123,
https://doi.org/10.2298/JSC230327042P . .

TY  - JOUR
AU  - Borisov, Mirko
AU  - Gavrilović, Milan
AU  - Sladić, Dubravka
AU  - Radulović, Aleksandra
AU  - Petrović, Vladimir
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3574
AB  - The article deals with the length differences between georeference
surfaces within the state coordinate system of Serbia. It’s an
analysis starting from the topography, through geoid and ellipsoid,
to the map projection. During the literature review, analyses
of the length changes from topography to the state map projection
for the geographic territory of Serbia were not found. The
set of initial data consists DEM and the geoid model, as well as
vector data that contain the boundary of the research area.
Calculation will be performed on the basis of 88439 points of
grids, located at a distance of 1 km, while the analysis will be
done by comparing average deformations, extreme deformation
values, percentage of positive and negative values of deformations,
as well as percentage of length without deformations. The
aim of this research is to provide a set of data on length differences
that covers the entire territory of Serbia.
PB  - England : Taylor and Francis Ltd.
T2  - Geocarto International
T1  - Comparative analysis of length differences between georeference surfaces
DO  - 10.1080/10106049.2020.1750065
ER  - 

@article{
author = "Borisov, Mirko and Gavrilović, Milan and Sladić, Dubravka and Radulović, Aleksandra and Petrović, Vladimir",
year = "2020",
abstract = "The article deals with the length differences between georeference
surfaces within the state coordinate system of Serbia. It’s an
analysis starting from the topography, through geoid and ellipsoid,
to the map projection. During the literature review, analyses
of the length changes from topography to the state map projection
for the geographic territory of Serbia were not found. The
set of initial data consists DEM and the geoid model, as well as
vector data that contain the boundary of the research area.
Calculation will be performed on the basis of 88439 points of
grids, located at a distance of 1 km, while the analysis will be
done by comparing average deformations, extreme deformation
values, percentage of positive and negative values of deformations,
as well as percentage of length without deformations. The
aim of this research is to provide a set of data on length differences
that covers the entire territory of Serbia.",
publisher = "England : Taylor and Francis Ltd.",
journal = "Geocarto International",
title = "Comparative analysis of length differences between georeference surfaces",
doi = "10.1080/10106049.2020.1750065"
}

Borisov, M., Gavrilović, M., Sladić, D., Radulović, A.,& Petrović, V.. (2020). Comparative analysis of length differences between georeference surfaces. in Geocarto International
England : Taylor and Francis Ltd...
https://doi.org/10.1080/10106049.2020.1750065

Borisov M, Gavrilović M, Sladić D, Radulović A, Petrović V. Comparative analysis of length differences between georeference surfaces. in Geocarto International. 2020;.
doi:10.1080/10106049.2020.1750065 .

Borisov, Mirko, Gavrilović, Milan, Sladić, Dubravka, Radulović, Aleksandra, Petrović, Vladimir, "Comparative analysis of length differences between georeference surfaces" in Geocarto International (2020),
https://doi.org/10.1080/10106049.2020.1750065 . .

TY  - JOUR
AU  - Borisov, Mirko
AU  - Gavrilović, Milan
AU  - Sladić, Dubravka
AU  - Radulović, Aleksandra
AU  - Petrović, Vladimir
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3622
AB  - The article deals with the length differences between georeferencesurfaces within the state coordinate system of Serbia. It’s ananalysis starting from the topography, through geoid and ellipsoid,to the map projection. During the literature review, analysesof the length changes from topography to the state map projectionfor the geographic territory of Serbia were not found. Theset of initial data consists DEM and the geoid model, as well asvector data that contain the boundary of the research area.Calculation will be performed on the basis of 88439 points ofgrids, located at a distance of 1 km, while the analysis will bedone by comparing average deformations, extreme deformationvalues, percentage of positive and negative values of deformations,as well as percentage of length without deformations. Theaim of this research is to provide a set of data on length differencesthat covers the entire territory of Serbia.
PB  - England : Taylor and Francis Ltd.
T2  - Geocarto International
T1  - Comparative analysis of length differences between georeference surfaces
DO  - 10.1080/10106049.2020.1750065
ER  - 

@article{
author = "Borisov, Mirko and Gavrilović, Milan and Sladić, Dubravka and Radulović, Aleksandra and Petrović, Vladimir",
year = "2020",
abstract = "The article deals with the length differences between georeferencesurfaces within the state coordinate system of Serbia. It’s ananalysis starting from the topography, through geoid and ellipsoid,to the map projection. During the literature review, analysesof the length changes from topography to the state map projectionfor the geographic territory of Serbia were not found. Theset of initial data consists DEM and the geoid model, as well asvector data that contain the boundary of the research area.Calculation will be performed on the basis of 88439 points ofgrids, located at a distance of 1 km, while the analysis will bedone by comparing average deformations, extreme deformationvalues, percentage of positive and negative values of deformations,as well as percentage of length without deformations. Theaim of this research is to provide a set of data on length differencesthat covers the entire territory of Serbia.",
publisher = "England : Taylor and Francis Ltd.",
journal = "Geocarto International",
title = "Comparative analysis of length differences between georeference surfaces",
doi = "10.1080/10106049.2020.1750065"
}

Borisov, M., Gavrilović, M., Sladić, D., Radulović, A.,& Petrović, V.. (2020). Comparative analysis of length differences between georeference surfaces. in Geocarto International
England : Taylor and Francis Ltd...
https://doi.org/10.1080/10106049.2020.1750065

Borisov M, Gavrilović M, Sladić D, Radulović A, Petrović V. Comparative analysis of length differences between georeference surfaces. in Geocarto International. 2020;.
doi:10.1080/10106049.2020.1750065 .

Borisov, Mirko, Gavrilović, Milan, Sladić, Dubravka, Radulović, Aleksandra, Petrović, Vladimir, "Comparative analysis of length differences between georeference surfaces" in Geocarto International (2020),
https://doi.org/10.1080/10106049.2020.1750065 . .

TY  - JOUR
AU  - Pergal, Marija
AU  - Džunuzović, Jasna
AU  - Poreba, Rafal
AU  - Ostojić, Sanja
AU  - Radulović, Aleksandra
AU  - Spirkova, Milena
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1283
AB  - Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core as the hard segments were characterized by swelling experiments, thermal analyses (DSC and TG), thermomechanical analysis (DMTA), X-ray scattering studies, SEM and AFM analyses, water contact angle and water absorption measurements, as well as surface free energy determination. From these studies, structure-property relationships were elucidated. Hyperbranched polyesters based on 2,2-bis(hydroxymethyl)propionic acid and ethoxylated pentaerythritol or di-trimethylolpropane as core (BH-40 and HBP-4) were used as crosslinkers for the samples of different series. Both series are composed of samples having different PDMS (i.e., soft segment) content. The crosslinking density and extent of hydrogen bonding showed an influence on the polyurethane (PU) properties. It was found that higher crosslinking density and better thermal stability of PUs based on BH-40 compared to HBP-4 based PUs are due to the less dense structure of BH-40. DMTA experiments revealed that the networks exhibit two glass transition temperatures, of the soft and hard segments, and one secondary relaxation process. The crosslinking density and extent of the microphase separation increased and thermomechanical properties were improved with decreasing content of PDMS. With increasing PDMS content, the surface of the polyurethane networks became more hydrophobic, the surface free energy decreased and thermal stability was improved. The obtained results revealed that synthesized PUs have good thermal and thermomechanical properties, which can be tailored for the potential use in the coating technology by changing the type of hyperbranched polyester or PDMS content.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation
VL  - 76
IS  - 4
SP  - 743
EP  - 756
DO  - 10.1016/j.porgcoat.2013.01.007
ER  - 

@article{
author = "Pergal, Marija and Džunuzović, Jasna and Poreba, Rafal and Ostojić, Sanja and Radulović, Aleksandra and Spirkova, Milena",
year = "2013",
abstract = "Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core as the hard segments were characterized by swelling experiments, thermal analyses (DSC and TG), thermomechanical analysis (DMTA), X-ray scattering studies, SEM and AFM analyses, water contact angle and water absorption measurements, as well as surface free energy determination. From these studies, structure-property relationships were elucidated. Hyperbranched polyesters based on 2,2-bis(hydroxymethyl)propionic acid and ethoxylated pentaerythritol or di-trimethylolpropane as core (BH-40 and HBP-4) were used as crosslinkers for the samples of different series. Both series are composed of samples having different PDMS (i.e., soft segment) content. The crosslinking density and extent of hydrogen bonding showed an influence on the polyurethane (PU) properties. It was found that higher crosslinking density and better thermal stability of PUs based on BH-40 compared to HBP-4 based PUs are due to the less dense structure of BH-40. DMTA experiments revealed that the networks exhibit two glass transition temperatures, of the soft and hard segments, and one secondary relaxation process. The crosslinking density and extent of the microphase separation increased and thermomechanical properties were improved with decreasing content of PDMS. With increasing PDMS content, the surface of the polyurethane networks became more hydrophobic, the surface free energy decreased and thermal stability was improved. The obtained results revealed that synthesized PUs have good thermal and thermomechanical properties, which can be tailored for the potential use in the coating technology by changing the type of hyperbranched polyester or PDMS content.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation",
volume = "76",
number = "4",
pages = "743-756",
doi = "10.1016/j.porgcoat.2013.01.007"
}

Pergal, M., Džunuzović, J., Poreba, R., Ostojić, S., Radulović, A.,& Spirkova, M.. (2013). Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 76(4), 743-756.
https://doi.org/10.1016/j.porgcoat.2013.01.007

Pergal M, Džunuzović J, Poreba R, Ostojić S, Radulović A, Spirkova M. Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation. in Progress in Organic Coatings. 2013;76(4):743-756.
doi:10.1016/j.porgcoat.2013.01.007 .

Pergal, Marija, Džunuzović, Jasna, Poreba, Rafal, Ostojić, Sanja, Radulović, Aleksandra, Spirkova, Milena, "Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation" in Progress in Organic Coatings, 76, no. 4 (2013):743-756,
https://doi.org/10.1016/j.porgcoat.2013.01.007 . .

TY  - CONF
AU  - Stefanović, Ivan
AU  - Gođevac, Dejan
AU  - Ostojić, Sanja
AU  - Radulović, Aleksandra
AU  - Tešević, Vele
AU  - Pergal, Marija
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6479
AB  - The aim of this work was to synthesize a new series of thermoplastic polyurethane (TPU) nanocomposites in order to improve thermal, mechanical, barrier and biocompatible properties of TPUs for potential biomedical applications. Nanocomposites with 20 wt. % of hard segments were prepared with addition of organically modified montmorillonite clay (Cloisite 30B) by in situ two-step polyaddition reaction in solution. Hard segment of TPU prepared in the form of film, consist of 4,4'-methylenediphenyl diisocyanate and 1,4- butanediol, while α,ω-dihydroxyethoxy propyl poly(dimethylsiloxane) was used as the soft segment. Different content of organoclay (1, 3, 5, 8 and 10 wt. %) was incorporated into TPU matrix in order to examine the influence of the nanoclay content on the structure, morphology and thermal properties. The structure of obtained nanocomposites was confirmed by FTIR spectroscopy. Morphological characterization of nanocomposites was carried out using wide-angle X-ray diffraction (WAXD) and scanning electron microscopy (SEM) techniques. SEM and WAXD results confirmed a well dispersion of intercalateed/exfoliated structure of organoclay nanofillers in the TPU matrix, when the content was up to 5 wt. %. Thermogravimetric analysis (TGA) revealed that incorporation of organoclay particles significantly enhances the thermal stability of nanocomposites in comparison with pure TPU. Differential scanning calorimetry (DSC) was used to determine the melting, crystallization and glass transition temperatures of hard segments, which was found to shift toward higher temperatures upon increasing the organoclay content to 5 wt. %, but then there were no changes when the organoclay content increased to 10 wt. %. The presence of layered silicates from organically modified montmorillonite clay in TPUs can result in more ordered hard segments having higher melting temperature, that in other hand show loss in crystallinity of the hard segments. It is estimated that the total degree of crystallinity of nanocomposites was in the range from 3.1 to 3.9 %, while for pure TPU it was 4.3 %. It can be concluded that the organoclay particles are homogeneously dispersed in TPU matrix with lower content of organoclay and preferentially embedded in the hard segment phase of TPUs.
PB  - Belgrade : Serbian Chemical Society
C3  - 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia
T1  - Structure, morphological and thermal properties of thermoplastic polyurethane/organically modified montmorillonite nanocomposites
SP  - 184
EP  - 184
UR  - https://hdl.handle.net/21.15107/rcub_cer_6479
ER  - 

@conference{
author = "Stefanović, Ivan and Gođevac, Dejan and Ostojić, Sanja and Radulović, Aleksandra and Tešević, Vele and Pergal, Marija",
year = "2013",
abstract = "The aim of this work was to synthesize a new series of thermoplastic polyurethane (TPU) nanocomposites in order to improve thermal, mechanical, barrier and biocompatible properties of TPUs for potential biomedical applications. Nanocomposites with 20 wt. % of hard segments were prepared with addition of organically modified montmorillonite clay (Cloisite 30B) by in situ two-step polyaddition reaction in solution. Hard segment of TPU prepared in the form of film, consist of 4,4'-methylenediphenyl diisocyanate and 1,4- butanediol, while α,ω-dihydroxyethoxy propyl poly(dimethylsiloxane) was used as the soft segment. Different content of organoclay (1, 3, 5, 8 and 10 wt. %) was incorporated into TPU matrix in order to examine the influence of the nanoclay content on the structure, morphology and thermal properties. The structure of obtained nanocomposites was confirmed by FTIR spectroscopy. Morphological characterization of nanocomposites was carried out using wide-angle X-ray diffraction (WAXD) and scanning electron microscopy (SEM) techniques. SEM and WAXD results confirmed a well dispersion of intercalateed/exfoliated structure of organoclay nanofillers in the TPU matrix, when the content was up to 5 wt. %. Thermogravimetric analysis (TGA) revealed that incorporation of organoclay particles significantly enhances the thermal stability of nanocomposites in comparison with pure TPU. Differential scanning calorimetry (DSC) was used to determine the melting, crystallization and glass transition temperatures of hard segments, which was found to shift toward higher temperatures upon increasing the organoclay content to 5 wt. %, but then there were no changes when the organoclay content increased to 10 wt. %. The presence of layered silicates from organically modified montmorillonite clay in TPUs can result in more ordered hard segments having higher melting temperature, that in other hand show loss in crystallinity of the hard segments. It is estimated that the total degree of crystallinity of nanocomposites was in the range from 3.1 to 3.9 %, while for pure TPU it was 4.3 %. It can be concluded that the organoclay particles are homogeneously dispersed in TPU matrix with lower content of organoclay and preferentially embedded in the hard segment phase of TPUs.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia",
title = "Structure, morphological and thermal properties of thermoplastic polyurethane/organically modified montmorillonite nanocomposites",
pages = "184-184",
url = "https://hdl.handle.net/21.15107/rcub_cer_6479"
}

Stefanović, I., Gođevac, D., Ostojić, S., Radulović, A., Tešević, V.,& Pergal, M.. (2013). Structure, morphological and thermal properties of thermoplastic polyurethane/organically modified montmorillonite nanocomposites. in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia
Belgrade : Serbian Chemical Society., 184-184.
https://hdl.handle.net/21.15107/rcub_cer_6479

Stefanović I, Gođevac D, Ostojić S, Radulović A, Tešević V, Pergal M. Structure, morphological and thermal properties of thermoplastic polyurethane/organically modified montmorillonite nanocomposites. in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia. 2013;:184-184.
https://hdl.handle.net/21.15107/rcub_cer_6479 .

Stefanović, Ivan, Gođevac, Dejan, Ostojić, Sanja, Radulović, Aleksandra, Tešević, Vele, Pergal, Marija, "Structure, morphological and thermal properties of thermoplastic polyurethane/organically modified montmorillonite nanocomposites" in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia (2013):184-184,
https://hdl.handle.net/21.15107/rcub_cer_6479 .

TY  - JOUR
AU  - Pergal, Marija
AU  - Džunuzović, Jasna
AU  - Ostojić, Sanja
AU  - Pergal, Miodrag M.
AU  - Radulović, Aleksandra
AU  - Jovanovic, Slobodan
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1108
AB  - A series of novel polyurethane crosslinked structures (PUs) was prepared from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO), 4,4'-methylenediphenyl diisocyanate and Boltorn ® hyperbranched polyester of the third pseudo generation. The hydroxyfunctional hyperbranched aliphatic polyester with 26 end groups was used as a crosslinking agent. In order to improve the compatibility of all the reactants during the synthesis, the PU samples were prepared by two-stage, step-growth polymerization in solution. The content of the soft EO-PDMS-EO segments was varied in the range from 15 to 40 wt. %. The influence of the EO-PDMS-EO content on the swelling behavior, crosslink density, hardness, and the thermal and surface properties of the synthesized PUs was investigated. The structure of the synthesized polyurethanes was confirmed by the presence of specific bands in the Fourier transform infrared spectra. Swelling studies were performed to determine the crosslink density and polyurethane networks with lower EO-PDMS-EO contents had higher crosslink densities. The glass transition temperature of the synthesized PUs, determined by differential scanning calorimetry, slightly increased from 50 to 58°C on decreasing the EO-PDMS-EO content because of the higher crosslink density of the samples. Increasing the EO-PDMS-EO content led to better thermal stability, as was evidenced by the onset temperature of weight loss. The surface of the polyurethane networks became more hydrophobic with increasing EO-PDMS-EO content. The surface morphology of synthesized polyurethanes was analyzed by scanning electron microscopy.
AB  - U ovom radu prikazana je sinteza, struktura i neka svojstva novih umreženih poliuretana pripremljenih polazeći od α,ω-dihidroksi-(etilenoksid-poli(dimetilsiloksan)-etilenoksid) pretpolimera (EO-PDMS-EO), 4,4'-metilendifenildiizocijanata i Boltorn® hiperrazgranatog poliestra treće pseudo-generacije. Hiperrazgranati hidroksi funkcionalni alifatski poliestar sa 26 krajnjih grupa služio je kao umrežavajući agens pri sintezi poliuretana. U cilju poboljšanja kompatibilnosti reaktanata tokom sinteze, poliuretani su sintetisani dvostepenom polimerizacijom u rastvoru. Sadržaj mekog EO-PDMS-EO segmenta variran je u opsegu od 15 do 40 mas. %. Ispitan je uticaj EO-PDMS-EO sadržaja na ponašanje pri bubrenju, gustinu umrežavanja, tvrdoću, termička i površinska svojstva sintetisanih poliuretana. Struktura sintetisanih poliuretana potvrđena je FTIR spektroskopijom. Ponašanje pri bubrenju je ispitivano kako bi se odredila gustina umrežavanja i pokazano je da poliuretanske mreže sa nižim EO-PDMS-EO sadržajem imaju veću gustinu umrežavanja. Rezultati diferencijalne skenirajuće kalorimetrije pokazali su povećanje temperature ostakljivanja poliuretana od 50 do 58°C sa smanjenjem EO-PDMS-EO sadržaja kao posledicu veće gustine umreženosti uzoraka. Sintetisani poliuretani sa većim sadržajem EO-PDMS-EO segmenata pokazuju bolju termičku stabilnost, što je potvrđeno porastom početne temperature degradacije, određene TG analizom. Hidrofobnost površine poliuretana je rasla sa povećanjem sadržaja EO-PDMS-EO u odgovarajućem uzorku. Površinska morfologija sintetisanih poliuretana je analizirana skenirajućom elektronskom mikroskopijom.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Poly(urethane-siloxane)s based on hyperbranched polyester as crosslinking agent: Synthesis and characterization
T1  - Poli(uretan-siloksani) na bazi hiperrazgranatog poliestra kao umreživača - sinteza i karakterizacija
VL  - 77
IS  - 7
SP  - 919
EP  - 935
DO  - 10.2298/JSC111013006P
ER  - 

@article{
author = "Pergal, Marija and Džunuzović, Jasna and Ostojić, Sanja and Pergal, Miodrag M. and Radulović, Aleksandra and Jovanovic, Slobodan",
year = "2012",
abstract = "A series of novel polyurethane crosslinked structures (PUs) was prepared from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO), 4,4'-methylenediphenyl diisocyanate and Boltorn ® hyperbranched polyester of the third pseudo generation. The hydroxyfunctional hyperbranched aliphatic polyester with 26 end groups was used as a crosslinking agent. In order to improve the compatibility of all the reactants during the synthesis, the PU samples were prepared by two-stage, step-growth polymerization in solution. The content of the soft EO-PDMS-EO segments was varied in the range from 15 to 40 wt. %. The influence of the EO-PDMS-EO content on the swelling behavior, crosslink density, hardness, and the thermal and surface properties of the synthesized PUs was investigated. The structure of the synthesized polyurethanes was confirmed by the presence of specific bands in the Fourier transform infrared spectra. Swelling studies were performed to determine the crosslink density and polyurethane networks with lower EO-PDMS-EO contents had higher crosslink densities. The glass transition temperature of the synthesized PUs, determined by differential scanning calorimetry, slightly increased from 50 to 58°C on decreasing the EO-PDMS-EO content because of the higher crosslink density of the samples. Increasing the EO-PDMS-EO content led to better thermal stability, as was evidenced by the onset temperature of weight loss. The surface of the polyurethane networks became more hydrophobic with increasing EO-PDMS-EO content. The surface morphology of synthesized polyurethanes was analyzed by scanning electron microscopy., U ovom radu prikazana je sinteza, struktura i neka svojstva novih umreženih poliuretana pripremljenih polazeći od α,ω-dihidroksi-(etilenoksid-poli(dimetilsiloksan)-etilenoksid) pretpolimera (EO-PDMS-EO), 4,4'-metilendifenildiizocijanata i Boltorn® hiperrazgranatog poliestra treće pseudo-generacije. Hiperrazgranati hidroksi funkcionalni alifatski poliestar sa 26 krajnjih grupa služio je kao umrežavajući agens pri sintezi poliuretana. U cilju poboljšanja kompatibilnosti reaktanata tokom sinteze, poliuretani su sintetisani dvostepenom polimerizacijom u rastvoru. Sadržaj mekog EO-PDMS-EO segmenta variran je u opsegu od 15 do 40 mas. %. Ispitan je uticaj EO-PDMS-EO sadržaja na ponašanje pri bubrenju, gustinu umrežavanja, tvrdoću, termička i površinska svojstva sintetisanih poliuretana. Struktura sintetisanih poliuretana potvrđena je FTIR spektroskopijom. Ponašanje pri bubrenju je ispitivano kako bi se odredila gustina umrežavanja i pokazano je da poliuretanske mreže sa nižim EO-PDMS-EO sadržajem imaju veću gustinu umrežavanja. Rezultati diferencijalne skenirajuće kalorimetrije pokazali su povećanje temperature ostakljivanja poliuretana od 50 do 58°C sa smanjenjem EO-PDMS-EO sadržaja kao posledicu veće gustine umreženosti uzoraka. Sintetisani poliuretani sa većim sadržajem EO-PDMS-EO segmenata pokazuju bolju termičku stabilnost, što je potvrđeno porastom početne temperature degradacije, određene TG analizom. Hidrofobnost površine poliuretana je rasla sa povećanjem sadržaja EO-PDMS-EO u odgovarajućem uzorku. Površinska morfologija sintetisanih poliuretana je analizirana skenirajućom elektronskom mikroskopijom.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Poly(urethane-siloxane)s based on hyperbranched polyester as crosslinking agent: Synthesis and characterization, Poli(uretan-siloksani) na bazi hiperrazgranatog poliestra kao umreživača - sinteza i karakterizacija",
volume = "77",
number = "7",
pages = "919-935",
doi = "10.2298/JSC111013006P"
}

Pergal, M., Džunuzović, J., Ostojić, S., Pergal, M. M., Radulović, A.,& Jovanovic, S.. (2012). Poly(urethane-siloxane)s based on hyperbranched polyester as crosslinking agent: Synthesis and characterization. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 77(7), 919-935.
https://doi.org/10.2298/JSC111013006P

Pergal M, Džunuzović J, Ostojić S, Pergal MM, Radulović A, Jovanovic S. Poly(urethane-siloxane)s based on hyperbranched polyester as crosslinking agent: Synthesis and characterization. in Journal of the Serbian Chemical Society. 2012;77(7):919-935.
doi:10.2298/JSC111013006P .

Pergal, Marija, Džunuzović, Jasna, Ostojić, Sanja, Pergal, Miodrag M., Radulović, Aleksandra, Jovanovic, Slobodan, "Poly(urethane-siloxane)s based on hyperbranched polyester as crosslinking agent: Synthesis and characterization" in Journal of the Serbian Chemical Society, 77, no. 7 (2012):919-935,
https://doi.org/10.2298/JSC111013006P . .

TY  - JOUR
AU  - Ciric-Marjanovic, G.
AU  - Dondur, Vera
AU  - Milojević, M.
AU  - Mojović, Miloš
AU  - Mentus, Slavko
AU  - Radulović, Aleksandra
AU  - Vuković, Zorica
AU  - Stejskal, J.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/568
AB  - Self-assembled conducting, paramagnetic polyaniline nanotubes have been synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in aqueous medium in the presence of zeolite HZSM-5, without added acid. The influence of initial zeolite/aniline weight ratio on the conductivity, molecular and supramolecular structure, paramagnetic characteristics, thermal stability, and specific surface area of poly aniline/zeolite composites was studied. The conducting (∼10-2S cm-1), semiconducting (3 × 10-5 S cm-1), and nonconducting (5 × 10-9 S cm-1) composites are produced using the zeolite/aniline weight ratios 1, 5, and 10, respectively. The coexistence of polyaniline nanotubes, which have a typical outer diameter of 70-170 nm and an inner diameter of 5-50 nm, accompanied by nanorods with a diameter of 60-100 nm and polyaniline/zeolite mesoporous aggregates, distinct from the morphology of mieroporous zeolite HZSM-5, was proved in the conducting nanocomposite by scanning and transmission electron microscopies. FTIR spectroscopy confirmed the presence of polyaniline in the form of conducting emeraldine salt and suggested significant interaction of polyaniline with zeolite. The evolution of molecular and supramolecular structure of polyaniline in the presence of zeolite was discussed.
T2  - Langmuir
T1  - Synthesis and characterization of conducting self-assembled polyaniline nanotubes/zeolite nanocomposite
VL  - 25
IS  - 5
SP  - 3122
EP  - 3131
DO  - 10.1021/la8030396
ER  - 

@article{
author = "Ciric-Marjanovic, G. and Dondur, Vera and Milojević, M. and Mojović, Miloš and Mentus, Slavko and Radulović, Aleksandra and Vuković, Zorica and Stejskal, J.",
year = "2009",
abstract = "Self-assembled conducting, paramagnetic polyaniline nanotubes have been synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in aqueous medium in the presence of zeolite HZSM-5, without added acid. The influence of initial zeolite/aniline weight ratio on the conductivity, molecular and supramolecular structure, paramagnetic characteristics, thermal stability, and specific surface area of poly aniline/zeolite composites was studied. The conducting (∼10-2S cm-1), semiconducting (3 × 10-5 S cm-1), and nonconducting (5 × 10-9 S cm-1) composites are produced using the zeolite/aniline weight ratios 1, 5, and 10, respectively. The coexistence of polyaniline nanotubes, which have a typical outer diameter of 70-170 nm and an inner diameter of 5-50 nm, accompanied by nanorods with a diameter of 60-100 nm and polyaniline/zeolite mesoporous aggregates, distinct from the morphology of mieroporous zeolite HZSM-5, was proved in the conducting nanocomposite by scanning and transmission electron microscopies. FTIR spectroscopy confirmed the presence of polyaniline in the form of conducting emeraldine salt and suggested significant interaction of polyaniline with zeolite. The evolution of molecular and supramolecular structure of polyaniline in the presence of zeolite was discussed.",
journal = "Langmuir",
title = "Synthesis and characterization of conducting self-assembled polyaniline nanotubes/zeolite nanocomposite",
volume = "25",
number = "5",
pages = "3122-3131",
doi = "10.1021/la8030396"
}

Ciric-Marjanovic, G., Dondur, V., Milojević, M., Mojović, M., Mentus, S., Radulović, A., Vuković, Z.,& Stejskal, J.. (2009). Synthesis and characterization of conducting self-assembled polyaniline nanotubes/zeolite nanocomposite. in Langmuir, 25(5), 3122-3131.
https://doi.org/10.1021/la8030396

Ciric-Marjanovic G, Dondur V, Milojević M, Mojović M, Mentus S, Radulović A, Vuković Z, Stejskal J. Synthesis and characterization of conducting self-assembled polyaniline nanotubes/zeolite nanocomposite. in Langmuir. 2009;25(5):3122-3131.
doi:10.1021/la8030396 .

Ciric-Marjanovic, G., Dondur, Vera, Milojević, M., Mojović, Miloš, Mentus, Slavko, Radulović, Aleksandra, Vuković, Zorica, Stejskal, J., "Synthesis and characterization of conducting self-assembled polyaniline nanotubes/zeolite nanocomposite" in Langmuir, 25, no. 5 (2009):3122-3131,
https://doi.org/10.1021/la8030396 . .