TY  - JOUR
AU  - Tasic, Aleksandra M.
AU  - Pergal, Marija
AU  - Antić, Mališa
AU  - Antić, Vesna
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2106
AB  - A series of alpha,omega-telechelic polydimethylsiloxanes (PDMS), with predetermined molecular weights of about 2500 g mol(-1), was synthesized by siloxane equilibration reaction. Syntheses were performed using octamethylcyclotetrasiloxane (D-4) and various disiloxanes: hexamethyldisiloxane (HMDS), 1,1,3,3-tetramethyldisiloxane (TMDS), 1,3-divinyltetramethyldisiloxane (DVTMDS), 1,3-bis(3-carboxypropyl) tetramethyldisiloxane (DCPTMDS) and 1,3-bis(3-aminopropyl) tetramethyldisiloxane (DAPTMDS). The role of the disiloxane was to introduce terminal functional groups at the end of the polymer chains and to control the molecular weight of the polymers. Polymers with trimethyl, hydrido, vinyl, carboxypropyl and aminopropyl end-groups were obtained in this way. The structure of the alpha,omega-telechelic PDMSs was confirmed by NMR and IR spectroscopy. The molecular weights of the polymers were determined by H-1-NMR, gel permeation chromatography (GPC) and dilute solution viscometry. Thermogravimetric analysis (TGA) under nitrogen and air showed that the type of the terminal groups significantly influenced the thermal and thermo-oxidative stability, as well as the degradation mechanism of the alpha,omega-telechelic PDMSs.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Synthesis, structure and thermogravimetric analysis of alpha,omega-telechelic polydimethylsiloxanes of low molecular weight
VL  - 82
IS  - 12
SP  - 1395
EP  - 1416
DO  - 10.2298/JSC170427082T
ER  - 

@article{
author = "Tasic, Aleksandra M. and Pergal, Marija and Antić, Mališa and Antić, Vesna",
year = "2017",
abstract = "A series of alpha,omega-telechelic polydimethylsiloxanes (PDMS), with predetermined molecular weights of about 2500 g mol(-1), was synthesized by siloxane equilibration reaction. Syntheses were performed using octamethylcyclotetrasiloxane (D-4) and various disiloxanes: hexamethyldisiloxane (HMDS), 1,1,3,3-tetramethyldisiloxane (TMDS), 1,3-divinyltetramethyldisiloxane (DVTMDS), 1,3-bis(3-carboxypropyl) tetramethyldisiloxane (DCPTMDS) and 1,3-bis(3-aminopropyl) tetramethyldisiloxane (DAPTMDS). The role of the disiloxane was to introduce terminal functional groups at the end of the polymer chains and to control the molecular weight of the polymers. Polymers with trimethyl, hydrido, vinyl, carboxypropyl and aminopropyl end-groups were obtained in this way. The structure of the alpha,omega-telechelic PDMSs was confirmed by NMR and IR spectroscopy. The molecular weights of the polymers were determined by H-1-NMR, gel permeation chromatography (GPC) and dilute solution viscometry. Thermogravimetric analysis (TGA) under nitrogen and air showed that the type of the terminal groups significantly influenced the thermal and thermo-oxidative stability, as well as the degradation mechanism of the alpha,omega-telechelic PDMSs.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Synthesis, structure and thermogravimetric analysis of alpha,omega-telechelic polydimethylsiloxanes of low molecular weight",
volume = "82",
number = "12",
pages = "1395-1416",
doi = "10.2298/JSC170427082T"
}

Tasic, A. M., Pergal, M., Antić, M.,& Antić, V.. (2017). Synthesis, structure and thermogravimetric analysis of alpha,omega-telechelic polydimethylsiloxanes of low molecular weight. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 82(12), 1395-1416.
https://doi.org/10.2298/JSC170427082T

Tasic AM, Pergal M, Antić M, Antić V. Synthesis, structure and thermogravimetric analysis of alpha,omega-telechelic polydimethylsiloxanes of low molecular weight. in Journal of the Serbian Chemical Society. 2017;82(12):1395-1416.
doi:10.2298/JSC170427082T .

Tasic, Aleksandra M., Pergal, Marija, Antić, Mališa, Antić, Vesna, "Synthesis, structure and thermogravimetric analysis of alpha,omega-telechelic polydimethylsiloxanes of low molecular weight" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1395-1416,
https://doi.org/10.2298/JSC170427082T . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Đonlagić, Jasna
AU  - Tovilović, Gordana
AU  - Nestorov, Jelena
AU  - Antić, Vesna
AU  - Ostojić, Sanja
AU  - Pergal, Marija
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1779
AB  - Polyurethane copolymers based on ,-dihydroxypropyl poly(dimethylsiloxane) (PDMS) with a range of soft segment contents were prepared by two-stage polymerization, and their microstructures, thermal, thermomechanical, and surface properties, as well as in vitro hemo- and cytocompatibility were evaluated. All utilized characterization methods confirmed the existence of moderately microphase separated structures with the appearance of some microphase mixing between segments as the PDMS (i.e., soft segment) content increased. Copolymers showed higher crystallinity, storage moduli, surface roughness, and surface free energy, but less hydrophobicity with decreasing PDMS content. Biocompatibility of copolymers was evaluated using an endothelial EA.hy926 cell line by direct contact, an extraction method and after pretreatment of copolymers with multicomponent protein mixture, as well as by a competitive protein adsorption assay. Copolymers showed no toxic effect to endothelial cells and all copolymers, except that with the lowest PDMS content, exhibited resistance to endothelial cell adhesion, suggesting their unsuitability for long-term biomedical devices which particularly require re-endothelialization. All copolymers exhibited excellent resistance to fibrinogen adsorption and adsorbed more albumin than fibrinogen in the competitive adsorption assay, suggesting their good hemocompatibility. The noncytotoxic chemistry of these synthesized materials, combined with their nonadherent properties which are inhospitable to cell attachment and growth, underlie the need for further investigations to clarify their potential for use in short-term biomedical devices.
PB  - Wiley-Blackwell, Hoboken
T2  - Journal of Biomedical Materials Research Part A
T1  - Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells
VL  - 103
IS  - 4
SP  - 1459
EP  - 1475
DO  - 10.1002/jbm.a.35285
ER  - 

@article{
author = "Stefanović, Ivan and Đonlagić, Jasna and Tovilović, Gordana and Nestorov, Jelena and Antić, Vesna and Ostojić, Sanja and Pergal, Marija",
year = "2015",
abstract = "Polyurethane copolymers based on ,-dihydroxypropyl poly(dimethylsiloxane) (PDMS) with a range of soft segment contents were prepared by two-stage polymerization, and their microstructures, thermal, thermomechanical, and surface properties, as well as in vitro hemo- and cytocompatibility were evaluated. All utilized characterization methods confirmed the existence of moderately microphase separated structures with the appearance of some microphase mixing between segments as the PDMS (i.e., soft segment) content increased. Copolymers showed higher crystallinity, storage moduli, surface roughness, and surface free energy, but less hydrophobicity with decreasing PDMS content. Biocompatibility of copolymers was evaluated using an endothelial EA.hy926 cell line by direct contact, an extraction method and after pretreatment of copolymers with multicomponent protein mixture, as well as by a competitive protein adsorption assay. Copolymers showed no toxic effect to endothelial cells and all copolymers, except that with the lowest PDMS content, exhibited resistance to endothelial cell adhesion, suggesting their unsuitability for long-term biomedical devices which particularly require re-endothelialization. All copolymers exhibited excellent resistance to fibrinogen adsorption and adsorbed more albumin than fibrinogen in the competitive adsorption assay, suggesting their good hemocompatibility. The noncytotoxic chemistry of these synthesized materials, combined with their nonadherent properties which are inhospitable to cell attachment and growth, underlie the need for further investigations to clarify their potential for use in short-term biomedical devices.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Journal of Biomedical Materials Research Part A",
title = "Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells",
volume = "103",
number = "4",
pages = "1459-1475",
doi = "10.1002/jbm.a.35285"
}

Stefanović, I., Đonlagić, J., Tovilović, G., Nestorov, J., Antić, V., Ostojić, S.,& Pergal, M.. (2015). Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells. in Journal of Biomedical Materials Research Part A
Wiley-Blackwell, Hoboken., 103(4), 1459-1475.
https://doi.org/10.1002/jbm.a.35285

Stefanović I, Đonlagić J, Tovilović G, Nestorov J, Antić V, Ostojić S, Pergal M. Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells. in Journal of Biomedical Materials Research Part A. 2015;103(4):1459-1475.
doi:10.1002/jbm.a.35285 .

Stefanović, Ivan, Đonlagić, Jasna, Tovilović, Gordana, Nestorov, Jelena, Antić, Vesna, Ostojić, Sanja, Pergal, Marija, "Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells" in Journal of Biomedical Materials Research Part A, 103, no. 4 (2015):1459-1475,
https://doi.org/10.1002/jbm.a.35285 . .

TY  - JOUR
AU  - Pergal, Marija
AU  - Stefanović, Ivan
AU  - Gođevac, Dejan
AU  - Antić, Vesna
AU  - Milačić, Vesna
AU  - Ostojić, Sanja
AU  - Rogan, Jelena R.
AU  - Đonlagić, Jasna
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1561
AB  - In this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements. Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)
VL  - 79
IS  - 7
SP  - 843
DO  - 10.2298/JSC130819149P
ER  - 

@article{
author = "Pergal, Marija and Stefanović, Ivan and Gođevac, Dejan and Antić, Vesna and Milačić, Vesna and Ostojić, Sanja and Rogan, Jelena R. and Đonlagić, Jasna",
year = "2014",
abstract = "In this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements. Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)",
volume = "79",
number = "7",
pages = "843",
doi = "10.2298/JSC130819149P"
}

Pergal, M., Stefanović, I., Gođevac, D., Antić, V., Milačić, V., Ostojić, S., Rogan, J. R.,& Đonlagić, J.. (2014). Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane). in Journal of the Serbian Chemical Society
Serbian Chemical Society., 79(7), 843.
https://doi.org/10.2298/JSC130819149P

Pergal M, Stefanović I, Gođevac D, Antić V, Milačić V, Ostojić S, Rogan JR, Đonlagić J. Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane). in Journal of the Serbian Chemical Society. 2014;79(7):843.
doi:10.2298/JSC130819149P .

Pergal, Marija, Stefanović, Ivan, Gođevac, Dejan, Antić, Vesna, Milačić, Vesna, Ostojić, Sanja, Rogan, Jelena R., Đonlagić, Jasna, "Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)" in Journal of the Serbian Chemical Society, 79, no. 7 (2014):843,
https://doi.org/10.2298/JSC130819149P . .

TY  - JOUR
AU  - Balaban, Milica
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Gođevac, Dejan
AU  - Francolini, Iolanda
AU  - Martinelli, Andrea
AU  - Rogan, Jelena R.
AU  - Đonlagić, Jasna
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1204
AB  - Segmented poly(urethane-urea-siloxane)s (PUUS) were synthesized using 4,4'-methylenediphenyl diisocyanate (MDI) and ethylene diamine (ED) as the hard segment components and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS) as the soft segment component, where the hard segment content ranged from 38 to 65 wt%. Segmented PUUSs were prepared by a two-step polymerization procedure in tetrahydrofuran/N-methylpyrrolidone (THF/NMP) mixture with a large proportion of polar solvent. The structure, composition and hard segment length were determined by C-13 NMR and two-dimensional correlation spectroscopy. Thermal, mechanical, small-angle X-ray scattering and hydrogen bonding analyses indicated the formation of the microphase-separated copolymers with high tensile strength. Globular superstructures observed in the copolymer films by scanning electron microscopy (SEM) and atomic force microscopy (AFM) were probably arisen from the microstructural organization of the MDI-ED segments, depending on their content and length. The PUUS copolymers showed high water resistance and became more hydrophobic with increasing weight fraction of PDMS.
PB  - Springer Verlag
T2  - Polymer Bulletin
T1  - Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties
VL  - 70
IS  - 9
SP  - 2493
EP  - 2518
DO  - 10.1007/s00289-013-0968-2
ER  - 

@article{
author = "Balaban, Milica and Antić, Vesna and Pergal, Marija and Gođevac, Dejan and Francolini, Iolanda and Martinelli, Andrea and Rogan, Jelena R. and Đonlagić, Jasna",
year = "2013",
abstract = "Segmented poly(urethane-urea-siloxane)s (PUUS) were synthesized using 4,4'-methylenediphenyl diisocyanate (MDI) and ethylene diamine (ED) as the hard segment components and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS) as the soft segment component, where the hard segment content ranged from 38 to 65 wt%. Segmented PUUSs were prepared by a two-step polymerization procedure in tetrahydrofuran/N-methylpyrrolidone (THF/NMP) mixture with a large proportion of polar solvent. The structure, composition and hard segment length were determined by C-13 NMR and two-dimensional correlation spectroscopy. Thermal, mechanical, small-angle X-ray scattering and hydrogen bonding analyses indicated the formation of the microphase-separated copolymers with high tensile strength. Globular superstructures observed in the copolymer films by scanning electron microscopy (SEM) and atomic force microscopy (AFM) were probably arisen from the microstructural organization of the MDI-ED segments, depending on their content and length. The PUUS copolymers showed high water resistance and became more hydrophobic with increasing weight fraction of PDMS.",
publisher = "Springer Verlag",
journal = "Polymer Bulletin",
title = "Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties",
volume = "70",
number = "9",
pages = "2493-2518",
doi = "10.1007/s00289-013-0968-2"
}

Balaban, M., Antić, V., Pergal, M., Gođevac, D., Francolini, I., Martinelli, A., Rogan, J. R.,& Đonlagić, J.. (2013). Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties. in Polymer Bulletin
Springer Verlag., 70(9), 2493-2518.
https://doi.org/10.1007/s00289-013-0968-2

Balaban M, Antić V, Pergal M, Gođevac D, Francolini I, Martinelli A, Rogan JR, Đonlagić J. Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties. in Polymer Bulletin. 2013;70(9):2493-2518.
doi:10.1007/s00289-013-0968-2 .

Balaban, Milica, Antić, Vesna, Pergal, Marija, Gođevac, Dejan, Francolini, Iolanda, Martinelli, Andrea, Rogan, Jelena R., Đonlagić, Jasna, "Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties" in Polymer Bulletin, 70, no. 9 (2013):2493-2518,
https://doi.org/10.1007/s00289-013-0968-2 . .

TY  - JOUR
AU  - Pergal, Marija
AU  - Antić, Vesna
AU  - Tovilović, Gordana
AU  - Nestorov, Jelena
AU  - Vasiljević-Radović, Dana
AU  - Đonlagić, Jasna
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1110
AB  - Novel polyurethane co-polymers (TPUs), based on poly(epsilon-caprolactone)-block-poly(dimethylsiloxane)-block-poly(epsilon-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) as hard segment, were synthesized and evaluated for biomedical applications. The content of hard segments (HS) in the polymer chains was varied from 9 to 63 wt%. The influence of the content and length of the HS on the thermal, surface, mechanical properties and biocompatibility was investigated. The structure, composition and HS length were examined using H-1- and quantitative C-13-NMR spectroscopy. DSC results implied that the synthesized TPUs were semicrystalline polymers in which both the hard MDI/BD and soft PCL-PDMS-PCL segments participated. It was found that an increase in the average HS length (from 1.2 to 14.4 MDI/BD units) was accompanied by an increase in the crystallinity of the hard segments, storage moduli, hydrophilicity and degree of microphase separation of the co-polymers. Depending on the HS content, a gradual variation in surface properties of co-polymers was revealed by FTIR, AFM and static water contact angle measurements. The in vitro biocompatibility of co-polymers was evaluated using the endothelial EA. hy926 cell line and protein adsorption on the polyurethane films. All synthesized TPUs adsorbed more albumin than fibrinogen from multicomponent protein mixture, which may indicate biocompatibility. The polyurethane films with high HS content and/or high roughness coefficient exhibit good surface properties and biocompatible behavior, which was confirmed by non-toxic effects to cells and good cell adhesion. Therefore, the non-cytotoxic chemistry of the co-polymers makes them good candidates for further development as biomedical implants.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Biomaterials Science-Polymer Edition
T1  - In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)
VL  - 23
IS  - 13
SP  - 1629
EP  - 1657
DO  - 10.1163/092050611X589338
ER  - 

@article{
author = "Pergal, Marija and Antić, Vesna and Tovilović, Gordana and Nestorov, Jelena and Vasiljević-Radović, Dana and Đonlagić, Jasna",
year = "2012",
abstract = "Novel polyurethane co-polymers (TPUs), based on poly(epsilon-caprolactone)-block-poly(dimethylsiloxane)-block-poly(epsilon-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) as hard segment, were synthesized and evaluated for biomedical applications. The content of hard segments (HS) in the polymer chains was varied from 9 to 63 wt%. The influence of the content and length of the HS on the thermal, surface, mechanical properties and biocompatibility was investigated. The structure, composition and HS length were examined using H-1- and quantitative C-13-NMR spectroscopy. DSC results implied that the synthesized TPUs were semicrystalline polymers in which both the hard MDI/BD and soft PCL-PDMS-PCL segments participated. It was found that an increase in the average HS length (from 1.2 to 14.4 MDI/BD units) was accompanied by an increase in the crystallinity of the hard segments, storage moduli, hydrophilicity and degree of microphase separation of the co-polymers. Depending on the HS content, a gradual variation in surface properties of co-polymers was revealed by FTIR, AFM and static water contact angle measurements. The in vitro biocompatibility of co-polymers was evaluated using the endothelial EA. hy926 cell line and protein adsorption on the polyurethane films. All synthesized TPUs adsorbed more albumin than fibrinogen from multicomponent protein mixture, which may indicate biocompatibility. The polyurethane films with high HS content and/or high roughness coefficient exhibit good surface properties and biocompatible behavior, which was confirmed by non-toxic effects to cells and good cell adhesion. Therefore, the non-cytotoxic chemistry of the co-polymers makes them good candidates for further development as biomedical implants.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Biomaterials Science-Polymer Edition",
title = "In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)",
volume = "23",
number = "13",
pages = "1629-1657",
doi = "10.1163/092050611X589338"
}

Pergal, M., Antić, V., Tovilović, G., Nestorov, J., Vasiljević-Radović, D.,& Đonlagić, J.. (2012). In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone). in Journal of Biomaterials Science-Polymer Edition
Taylor & Francis Ltd, Abingdon., 23(13), 1629-1657.
https://doi.org/10.1163/092050611X589338

Pergal M, Antić V, Tovilović G, Nestorov J, Vasiljević-Radović D, Đonlagić J. In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone). in Journal of Biomaterials Science-Polymer Edition. 2012;23(13):1629-1657.
doi:10.1163/092050611X589338 .

Pergal, Marija, Antić, Vesna, Tovilović, Gordana, Nestorov, Jelena, Vasiljević-Radović, Dana, Đonlagić, Jasna, "In Vitro Biocompatibility Evaluation of Novel Urethane-Siloxane Co-Polymers Based on Poly(epsilon-Caprolactone)-block-Poly(Dimethylsiloxane)-block-Poly(epsilon-Caprolactone)" in Journal of Biomaterials Science-Polymer Edition, 23, no. 13 (2012):1629-1657,
https://doi.org/10.1163/092050611X589338 . .

TY  - JOUR
AU  - Balaban, Milica
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Francolini, Iolanda
AU  - Martinelli, Andrea
AU  - Đonlagić, Jasna
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1123
AB  - Segmented poly(urethane-urea-siloxanes) (PUUS) based on 4,4'- methylene diphenyl diisocyanate-ethylene diamine (MDI-ED) hard segments and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS, Mn = 1000 g mol-1) soft segments were prepared under various experimental conditions. The copolymers with constant molar ratio of hard and soft segments (PDMS:MDI:ED = 1:2:1; 20 wt. % of the hard segments) were synthesized in two different solvent mixtures, by a two-step polyaddition procedure. The first one was tetrahydrofuran/N,N-dimethylacetamide (THF/DMAc) with different co-solvent ratios (1/1, 1/2 and 1/9, v/v), whereas the second one was tetrahydrofuran/N-methylpyrrolidone (THF/NMP, 1/9, v/v). The reaction conditions were optimized by varying the co-solvents ratio, the concentration of the catalyst, the initial monomer concentration, as well as the time of the first and the second step of the reaction. The effects of the experimental conditions on the size of the PUUS were investigated by gel permeation chromatography (GPC) and dilute solution viscometry. The copolymers with the highest molecular weights were obtained in the THF/NMP mixture (1/9, v/v). The structure and composition of the copolymers were determined by 1H-NMR and FTIR spectroscopy. The morphology of the synthesized copolymers was investigated by atomic force microscopy (AFM), while the thermal properties were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The surface properties were evaluated by measuring the water contact angle (WCA). The copolymers exhibited phase-separated microstructure and were stable up to 200°C in nitrogen.
AB  - Segmentirani poli(uretan-urea-siloksani) (PUUS), sa tvrdim segmentima na bazi 4,4'-metilendifenildiizocijanata i etilendiamina (MDI-ED) i mekim segmentima na bazi hidroksipropil-terminiranog poli(dimetilsiloksana) (PDMS, Mn = 1000 g mol-1), sintetisani su pod različitim eksperimentalnim uslovima. Kopolimeri sa konstantnim molskim odnosom tvrdih i mekih segmenata (PDMS:MDI:ED = 1:2:1; 20 mas. % tvrdih segmenata), sintetisani su u dve različite smeše rastvarača kao reakcionog medijuma, metodom dvostepene poliadicije. Prva kombinacija rastvarača je bila smeša tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc), dok je u drugom slučaju korišćena smeša THF-a i N-metilpirolidona (NMP). Reakcioni uslovi su optimizovani u pogledu odnosa ko-rastvarača, koncentracije katalizatora, početne koncentracije monomera i vremena odigravanja prve i druge faze reakcije. Ispitan je uticaj primenjenih eksperimentalnih uslova na veličinu PUUS primenom gel-propusne hromatografije (GPC) i viskozimetrije razblaženih rastvora [η]. Kopolimeri najvećih molarnih masa su dobijeni u smeši THF/NMP (1/9, v/v). Struktura i sastav kopolimera su okarakterisani 1H-NMR i FTIR spektroskopijom. Morfologija sintetisanih kopolimera je ispitana mikroskopijom atomskih sila (AFM), dok su termička svojstva ispitana diferencijalnom skenirajućom kalorimetrijom (DSC) i termogravimetrijskom analizom (TGA). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom (WCA). Kopolimeri su pokazali dvofaznu mikrostrukturu i bili su stabilni do 200°C u atmosteri azota.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s
T1  - Uticaj polarnih rastvarača na sintezu poli(uretan-urea-siloksana)
VL  - 77
IS  - 10
SP  - 1457
EP  - 1481
DO  - 10.2298/JSC111025056B
ER  - 

@article{
author = "Balaban, Milica and Antić, Vesna and Pergal, Marija and Francolini, Iolanda and Martinelli, Andrea and Đonlagić, Jasna",
year = "2012",
abstract = "Segmented poly(urethane-urea-siloxanes) (PUUS) based on 4,4'- methylene diphenyl diisocyanate-ethylene diamine (MDI-ED) hard segments and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS, Mn = 1000 g mol-1) soft segments were prepared under various experimental conditions. The copolymers with constant molar ratio of hard and soft segments (PDMS:MDI:ED = 1:2:1; 20 wt. % of the hard segments) were synthesized in two different solvent mixtures, by a two-step polyaddition procedure. The first one was tetrahydrofuran/N,N-dimethylacetamide (THF/DMAc) with different co-solvent ratios (1/1, 1/2 and 1/9, v/v), whereas the second one was tetrahydrofuran/N-methylpyrrolidone (THF/NMP, 1/9, v/v). The reaction conditions were optimized by varying the co-solvents ratio, the concentration of the catalyst, the initial monomer concentration, as well as the time of the first and the second step of the reaction. The effects of the experimental conditions on the size of the PUUS were investigated by gel permeation chromatography (GPC) and dilute solution viscometry. The copolymers with the highest molecular weights were obtained in the THF/NMP mixture (1/9, v/v). The structure and composition of the copolymers were determined by 1H-NMR and FTIR spectroscopy. The morphology of the synthesized copolymers was investigated by atomic force microscopy (AFM), while the thermal properties were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The surface properties were evaluated by measuring the water contact angle (WCA). The copolymers exhibited phase-separated microstructure and were stable up to 200°C in nitrogen., Segmentirani poli(uretan-urea-siloksani) (PUUS), sa tvrdim segmentima na bazi 4,4'-metilendifenildiizocijanata i etilendiamina (MDI-ED) i mekim segmentima na bazi hidroksipropil-terminiranog poli(dimetilsiloksana) (PDMS, Mn = 1000 g mol-1), sintetisani su pod različitim eksperimentalnim uslovima. Kopolimeri sa konstantnim molskim odnosom tvrdih i mekih segmenata (PDMS:MDI:ED = 1:2:1; 20 mas. % tvrdih segmenata), sintetisani su u dve različite smeše rastvarača kao reakcionog medijuma, metodom dvostepene poliadicije. Prva kombinacija rastvarača je bila smeša tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc), dok je u drugom slučaju korišćena smeša THF-a i N-metilpirolidona (NMP). Reakcioni uslovi su optimizovani u pogledu odnosa ko-rastvarača, koncentracije katalizatora, početne koncentracije monomera i vremena odigravanja prve i druge faze reakcije. Ispitan je uticaj primenjenih eksperimentalnih uslova na veličinu PUUS primenom gel-propusne hromatografije (GPC) i viskozimetrije razblaženih rastvora [η]. Kopolimeri najvećih molarnih masa su dobijeni u smeši THF/NMP (1/9, v/v). Struktura i sastav kopolimera su okarakterisani 1H-NMR i FTIR spektroskopijom. Morfologija sintetisanih kopolimera je ispitana mikroskopijom atomskih sila (AFM), dok su termička svojstva ispitana diferencijalnom skenirajućom kalorimetrijom (DSC) i termogravimetrijskom analizom (TGA). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom (WCA). Kopolimeri su pokazali dvofaznu mikrostrukturu i bili su stabilni do 200°C u atmosteri azota.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s, Uticaj polarnih rastvarača na sintezu poli(uretan-urea-siloksana)",
volume = "77",
number = "10",
pages = "1457-1481",
doi = "10.2298/JSC111025056B"
}

Balaban, M., Antić, V., Pergal, M., Francolini, I., Martinelli, A.,& Đonlagić, J.. (2012). The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 77(10), 1457-1481.
https://doi.org/10.2298/JSC111025056B

Balaban M, Antić V, Pergal M, Francolini I, Martinelli A, Đonlagić J. The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s. in Journal of the Serbian Chemical Society. 2012;77(10):1457-1481.
doi:10.2298/JSC111025056B .

Balaban, Milica, Antić, Vesna, Pergal, Marija, Francolini, Iolanda, Martinelli, Andrea, Đonlagić, Jasna, "The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s" in Journal of the Serbian Chemical Society, 77, no. 10 (2012):1457-1481,
https://doi.org/10.2298/JSC111025056B . .

TY  - JOUR
AU  - Ilić, Mila
AU  - Antić, Mališa
AU  - Antić, Vesna
AU  - Schwarzbauer, Jan
AU  - Vrvić, Miroslav
AU  - Jovančićević, Branimir
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/889
AB  - Bioremediation potential of bacteria and fungi isolated from sludge samples has been investigated (Danube alluvium, Panevo, Serbia). Total isolated microorganisms were divided into three parts. One part was added with actidione antifungicide. The second part was added with streptomycin antibiotic. The third part was without additives. Paraffinic type of crude oil was a substrate for assessment of bioremediation potential. The simulated oil biodegradation lasted 30, 60 and 90 days. Parallel with that, the experiments with blind trial were conducted. Extracts were isolated from the samples with chloroform in a separate funnel. They were assayed for the group composition (alkanes, aromatics, alcohols and fatty acids) by column chromatography. Alkane fraction was analysed by gas chromatography-mass spectrometry (GC-MS). The most intense oil degradation was achieved in the experiments with bacteria, somewhat weaker with consortium of fungi and bacteria, and the weakest bioremediation potential in these experiments was shown by fungi.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Chemistry Letters
T1  - Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation
VL  - 9
IS  - 1
SP  - 133
EP  - 140
DO  - 10.1007/s10311-009-0257-3
ER  - 

@article{
author = "Ilić, Mila and Antić, Mališa and Antić, Vesna and Schwarzbauer, Jan and Vrvić, Miroslav and Jovančićević, Branimir",
year = "2011",
abstract = "Bioremediation potential of bacteria and fungi isolated from sludge samples has been investigated (Danube alluvium, Panevo, Serbia). Total isolated microorganisms were divided into three parts. One part was added with actidione antifungicide. The second part was added with streptomycin antibiotic. The third part was without additives. Paraffinic type of crude oil was a substrate for assessment of bioremediation potential. The simulated oil biodegradation lasted 30, 60 and 90 days. Parallel with that, the experiments with blind trial were conducted. Extracts were isolated from the samples with chloroform in a separate funnel. They were assayed for the group composition (alkanes, aromatics, alcohols and fatty acids) by column chromatography. Alkane fraction was analysed by gas chromatography-mass spectrometry (GC-MS). The most intense oil degradation was achieved in the experiments with bacteria, somewhat weaker with consortium of fungi and bacteria, and the weakest bioremediation potential in these experiments was shown by fungi.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Chemistry Letters",
title = "Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation",
volume = "9",
number = "1",
pages = "133-140",
doi = "10.1007/s10311-009-0257-3"
}

Ilić, M., Antić, M., Antić, V., Schwarzbauer, J., Vrvić, M.,& Jovančićević, B.. (2011). Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation. in Environmental Chemistry Letters
Springer Heidelberg, Heidelberg., 9(1), 133-140.
https://doi.org/10.1007/s10311-009-0257-3

Ilić M, Antić M, Antić V, Schwarzbauer J, Vrvić M, Jovančićević B. Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation. in Environmental Chemistry Letters. 2011;9(1):133-140.
doi:10.1007/s10311-009-0257-3 .

Ilić, Mila, Antić, Mališa, Antić, Vesna, Schwarzbauer, Jan, Vrvić, Miroslav, Jovančićević, Branimir, "Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation" in Environmental Chemistry Letters, 9, no. 1 (2011):133-140,
https://doi.org/10.1007/s10311-009-0257-3 . .

TY  - JOUR
AU  - Pergal, Marija
AU  - Antić, Vesna
AU  - Ostojić, Sanja
AU  - Marinović-Cincović, Milena
AU  - Đonlagić, Jasna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/804
AB  - A series of novel thermoplastic urethane-siloxane copolymers (TPUSs) based on a α,ω-dihydroxy-[poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b- -poly(ε-caprolactone)] (α,ω-dihydroxy-PCL-PDMS-PCL) triblock copolymer, 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) was synthesized. The effects of the content (9-63 mass %) of hard urethane segments and their degree of polymerization on the properties of the segmented TPUSs were investigated. The structure, composition and hard segment degree of polymerization of the hard segments were examined using 1H- and quantitative 13C-NMR spectroscopy. The degree of crystallinity of the synthesized copolymers was determined using wide-angle X-ray scattering (WAXS). The surface properties were evaluated by measuring the water contact angle and water absorption. In the series of the TPUSs, the average degree of polymerization of the hard segments was varied from 1.2 to 14.4 MDI-BD units. It was found that average values from 3.8 to 14.4 MDI-BD units were effective segment lengths for crystallization of hard segments, which resulted in an increase in the degree of microphase separation of the copolymers. Spherulite-like superstructures were observed in copolymer films by scanning electron microscopy (SEM), which are believed to arise from the crystallization of the hard segments and/or PCL segments, depending on the content of the hard segments. The surface of the copolymers became more hydrophobic with increasing weight fraction of PDMS. The synthesized copolymers based on a PCL-PDMS-PCL segment showed good thermal stability, which increased with increasing content of soft PDMS segments, as was confirmed by the value of the starting temperature of thermal degradation.
AB  - U ovom radu prikazana je struktura i neka svojstva serije novih termoplastičnih uretan-siloksanskih kopolimera (TPUSs) na bazi α,ω-dihidroksi-[poli(ε-kaprolakton)-b-poli(dimetilsiloksan)-b-poli(ε-kaprolakton)] triblok kopolimera (α,ω-dihidroksi-PCL-PDMS-PCL), 4,4'-metilendifenildiizocijanata (MDI) i 1,4-butandiola (BD). Ispitan je uticaj sadržaja uretanskog tvrdog segmenta (9-63 mas. %) i njegove dužine, tj. stepena polimerizacije, izražene preko broja MDI-BD ostataka, na svojstva segmentiranih TPUSs. Struktura, sastav i stepen polimerizacije tvrdog segmenta su ispitani pomoću 1H- i kvantitativne 13C-NMR spektroskopije. Stepen kristaliničnosti kopolimera je određen metodom difrakcije X-zraka na velikim uglovima (WAXS). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom i merenjem apsorpcije vode. U seriji kopolimera dužina tvrdog segmenta izražena preko broja ponavljajućih MDI-BD jedinica je varirana od 1,2 do 14,4. Utvrđeno je da tvrdi segmenti sa 3,8 do 14,4 ponavljajućih MDI-BD jedinica efikasno kristališu, što je rezultovalo u povećanju stepena mikrofazne separacije kopolimera. SEM analiza je pokazala prisustvo sferulitne strukture u kopolimernim filmovima, koja najverovatnije potiče od kristalizacije tvrdih i/ili PCL segmenata, zavisno od sadržaja tvrdih segmenata. Hidrofobnost površine kopolimera je rasla sa povećanjem masenog udela PDMS-a u odgovarajućem uzorku. Sintetisani poliuretani na bazi PCL-PDMS-PCL pokazuju povećanje termičke stabilnosti sa povećanjem sadržaja mekih PDMS segmenata, što je potvrđeno porastom početne temperature degradacije, određene TG analizom.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Influence of the content of hard segments on the properties of novel urethane-siloxane copolymers based on a poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b-poly(ε-caprolactone) triblock copolymer
T1  - Uticaj sadržaja tvrdog segmenta na svojstva novih uretan-siloksanskih kopolimera na bazi poli(e-kaprolakton)-b-poli(dimetilsiloksan)-b-poli(e-kaprolaktona)
VL  - 76
IS  - 12
SP  - 1703
EP  - 1723
DO  - 10.2298/JSC110307146P
ER  - 

@article{
author = "Pergal, Marija and Antić, Vesna and Ostojić, Sanja and Marinović-Cincović, Milena and Đonlagić, Jasna",
year = "2011",
abstract = "A series of novel thermoplastic urethane-siloxane copolymers (TPUSs) based on a α,ω-dihydroxy-[poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b- -poly(ε-caprolactone)] (α,ω-dihydroxy-PCL-PDMS-PCL) triblock copolymer, 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) was synthesized. The effects of the content (9-63 mass %) of hard urethane segments and their degree of polymerization on the properties of the segmented TPUSs were investigated. The structure, composition and hard segment degree of polymerization of the hard segments were examined using 1H- and quantitative 13C-NMR spectroscopy. The degree of crystallinity of the synthesized copolymers was determined using wide-angle X-ray scattering (WAXS). The surface properties were evaluated by measuring the water contact angle and water absorption. In the series of the TPUSs, the average degree of polymerization of the hard segments was varied from 1.2 to 14.4 MDI-BD units. It was found that average values from 3.8 to 14.4 MDI-BD units were effective segment lengths for crystallization of hard segments, which resulted in an increase in the degree of microphase separation of the copolymers. Spherulite-like superstructures were observed in copolymer films by scanning electron microscopy (SEM), which are believed to arise from the crystallization of the hard segments and/or PCL segments, depending on the content of the hard segments. The surface of the copolymers became more hydrophobic with increasing weight fraction of PDMS. The synthesized copolymers based on a PCL-PDMS-PCL segment showed good thermal stability, which increased with increasing content of soft PDMS segments, as was confirmed by the value of the starting temperature of thermal degradation., U ovom radu prikazana je struktura i neka svojstva serije novih termoplastičnih uretan-siloksanskih kopolimera (TPUSs) na bazi α,ω-dihidroksi-[poli(ε-kaprolakton)-b-poli(dimetilsiloksan)-b-poli(ε-kaprolakton)] triblok kopolimera (α,ω-dihidroksi-PCL-PDMS-PCL), 4,4'-metilendifenildiizocijanata (MDI) i 1,4-butandiola (BD). Ispitan je uticaj sadržaja uretanskog tvrdog segmenta (9-63 mas. %) i njegove dužine, tj. stepena polimerizacije, izražene preko broja MDI-BD ostataka, na svojstva segmentiranih TPUSs. Struktura, sastav i stepen polimerizacije tvrdog segmenta su ispitani pomoću 1H- i kvantitativne 13C-NMR spektroskopije. Stepen kristaliničnosti kopolimera je određen metodom difrakcije X-zraka na velikim uglovima (WAXS). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom i merenjem apsorpcije vode. U seriji kopolimera dužina tvrdog segmenta izražena preko broja ponavljajućih MDI-BD jedinica je varirana od 1,2 do 14,4. Utvrđeno je da tvrdi segmenti sa 3,8 do 14,4 ponavljajućih MDI-BD jedinica efikasno kristališu, što je rezultovalo u povećanju stepena mikrofazne separacije kopolimera. SEM analiza je pokazala prisustvo sferulitne strukture u kopolimernim filmovima, koja najverovatnije potiče od kristalizacije tvrdih i/ili PCL segmenata, zavisno od sadržaja tvrdih segmenata. Hidrofobnost površine kopolimera je rasla sa povećanjem masenog udela PDMS-a u odgovarajućem uzorku. Sintetisani poliuretani na bazi PCL-PDMS-PCL pokazuju povećanje termičke stabilnosti sa povećanjem sadržaja mekih PDMS segmenata, što je potvrđeno porastom početne temperature degradacije, određene TG analizom.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of the content of hard segments on the properties of novel urethane-siloxane copolymers based on a poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b-poly(ε-caprolactone) triblock copolymer, Uticaj sadržaja tvrdog segmenta na svojstva novih uretan-siloksanskih kopolimera na bazi poli(e-kaprolakton)-b-poli(dimetilsiloksan)-b-poli(e-kaprolaktona)",
volume = "76",
number = "12",
pages = "1703-1723",
doi = "10.2298/JSC110307146P"
}

Pergal, M., Antić, V., Ostojić, S., Marinović-Cincović, M.,& Đonlagić, J.. (2011). Influence of the content of hard segments on the properties of novel urethane-siloxane copolymers based on a poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b-poly(ε-caprolactone) triblock copolymer. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 76(12), 1703-1723.
https://doi.org/10.2298/JSC110307146P

Pergal M, Antić V, Ostojić S, Marinović-Cincović M, Đonlagić J. Influence of the content of hard segments on the properties of novel urethane-siloxane copolymers based on a poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b-poly(ε-caprolactone) triblock copolymer. in Journal of the Serbian Chemical Society. 2011;76(12):1703-1723.
doi:10.2298/JSC110307146P .

Pergal, Marija, Antić, Vesna, Ostojić, Sanja, Marinović-Cincović, Milena, Đonlagić, Jasna, "Influence of the content of hard segments on the properties of novel urethane-siloxane copolymers based on a poly(ε-caprolactone)-b-poly(dimethylsiloxane)-b-poly(ε-caprolactone) triblock copolymer" in Journal of the Serbian Chemical Society, 76, no. 12 (2011):1703-1723,
https://doi.org/10.2298/JSC110307146P . .

TY  - JOUR
AU  - Pergal, Marija
AU  - Antić, Vesna
AU  - Govedarica, Milutin
AU  - Gođevac, Dejan
AU  - Ostojić, Sanja
AU  - Đonlagić, Jasna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/859
AB  - Novel polyurethane copolymers derived from 4,4'-methylenediphenyl diisocyanate (MDI), 1,4-butanediol (BD) and alpha, omega-dihydroxy-[poly(caprolactone)-poly (dimethylsiloxane)-poly(caprolactone)] (a, x-dihydroxy( PCL-PDMS-PCL); (M) over bar (n) 6100 g mol(-1)) were synthesized by a two-step polyaddition reaction in solution. In the synthesis of the polyurethanes, the PCL blocks served as a compatibilizer between the nonpolar PDMS blocks and the polar comonomers, MDI and BD. The synthesis of thermoplastic polyurethanes (TPU) with high soft segment contents was optimized in terms of the concentrations of the reactants, the molar ratio of the NCO/OH groups, and the time and temperature of the polyaddition reaction. The structure, composition, and hard MDI/BD segment length of the synthesized polyurethane copolymers were determined by H-1, C-13-NMR, and two-dimensional correlation (COSY, HSQC, and HMBC) spectroscopy, while the hydrogen bonding interactions in the copolymers were analyzed by FT-IR spectroscopy. The influence of the reaction conditions on the structure, molecular weight, thermal, and some physical properties was studied at constant composition of the reaction mixture. A change in the molar ratio of the NCO/OH groups and the reaction conditions modified not only the molecular weight of the synthesized polyurethanes, but also the microstructure and therefore the thermal and physical properties of the copolymers. It was demonstrated that only PCL segments with high soft segment contents crystallize, thereby showing spherulitic morphology.
PB  - Wiley-Blackwell, Malden
T2  - Journal of Applied Polymer Science
T1  - Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments
VL  - 122
IS  - 4
SP  - 2715
EP  - 2730
DO  - 10.1002/app.33926
ER  - 

@article{
author = "Pergal, Marija and Antić, Vesna and Govedarica, Milutin and Gođevac, Dejan and Ostojić, Sanja and Đonlagić, Jasna",
year = "2011",
abstract = "Novel polyurethane copolymers derived from 4,4'-methylenediphenyl diisocyanate (MDI), 1,4-butanediol (BD) and alpha, omega-dihydroxy-[poly(caprolactone)-poly (dimethylsiloxane)-poly(caprolactone)] (a, x-dihydroxy( PCL-PDMS-PCL); (M) over bar (n) 6100 g mol(-1)) were synthesized by a two-step polyaddition reaction in solution. In the synthesis of the polyurethanes, the PCL blocks served as a compatibilizer between the nonpolar PDMS blocks and the polar comonomers, MDI and BD. The synthesis of thermoplastic polyurethanes (TPU) with high soft segment contents was optimized in terms of the concentrations of the reactants, the molar ratio of the NCO/OH groups, and the time and temperature of the polyaddition reaction. The structure, composition, and hard MDI/BD segment length of the synthesized polyurethane copolymers were determined by H-1, C-13-NMR, and two-dimensional correlation (COSY, HSQC, and HMBC) spectroscopy, while the hydrogen bonding interactions in the copolymers were analyzed by FT-IR spectroscopy. The influence of the reaction conditions on the structure, molecular weight, thermal, and some physical properties was studied at constant composition of the reaction mixture. A change in the molar ratio of the NCO/OH groups and the reaction conditions modified not only the molecular weight of the synthesized polyurethanes, but also the microstructure and therefore the thermal and physical properties of the copolymers. It was demonstrated that only PCL segments with high soft segment contents crystallize, thereby showing spherulitic morphology.",
publisher = "Wiley-Blackwell, Malden",
journal = "Journal of Applied Polymer Science",
title = "Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments",
volume = "122",
number = "4",
pages = "2715-2730",
doi = "10.1002/app.33926"
}

Pergal, M., Antić, V., Govedarica, M., Gođevac, D., Ostojić, S.,& Đonlagić, J.. (2011). Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments. in Journal of Applied Polymer Science
Wiley-Blackwell, Malden., 122(4), 2715-2730.
https://doi.org/10.1002/app.33926

Pergal M, Antić V, Govedarica M, Gođevac D, Ostojić S, Đonlagić J. Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments. in Journal of Applied Polymer Science. 2011;122(4):2715-2730.
doi:10.1002/app.33926 .

Pergal, Marija, Antić, Vesna, Govedarica, Milutin, Gođevac, Dejan, Ostojić, Sanja, Đonlagić, Jasna, "Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments" in Journal of Applied Polymer Science, 122, no. 4 (2011):2715-2730,
https://doi.org/10.1002/app.33926 . .

TY  - CHAP
AU  - Antić, Vesna
AU  - Pergal, Marija
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/932
AB  - Synthesis, properties and application of thermoplastic polyester, poly (buthylene terephthalate) (PBT), are presented. The advantages and disadvantages of two synthetic routes-from dimethyl terephthalate (DMT) and terephthalic acid (TPA)-are given. The reaction conditions of the DMT route, as the main industrial synthetic route, are described in detail. The most frequently used catalysts are given, as well as the conditions for the solid-state postpolymerization. Physical and chemical properties of the filled and unfilled PBT grades are described. The use of different additives for various PBT formulations is described. Blending of PBT with other polymers, as a powerful route for obtaining materials with improved property/cost performances, is highlighted. A wide variety of nanoparticles, such as clays, carbon nanotubes, etc which are often used for the enhancement of physical, mechanical and thermal properties of PBT nanocomposites, are described. This chapter also emphasizes the most recent development in PBT-layered silicate nanocomposites.
T2  - Handbook of Engineering and Speciality Thermoplastics: Polyethers and Polyesters
T1  - Poly(butylene terephthalate)-Synthesis, Properties, Application
VL  - 3
SP  - 127
EP  - 180
DO  - 10.1002/9781118104729.ch5
ER  - 

@inbook{
author = "Antić, Vesna and Pergal, Marija",
year = "2011",
abstract = "Synthesis, properties and application of thermoplastic polyester, poly (buthylene terephthalate) (PBT), are presented. The advantages and disadvantages of two synthetic routes-from dimethyl terephthalate (DMT) and terephthalic acid (TPA)-are given. The reaction conditions of the DMT route, as the main industrial synthetic route, are described in detail. The most frequently used catalysts are given, as well as the conditions for the solid-state postpolymerization. Physical and chemical properties of the filled and unfilled PBT grades are described. The use of different additives for various PBT formulations is described. Blending of PBT with other polymers, as a powerful route for obtaining materials with improved property/cost performances, is highlighted. A wide variety of nanoparticles, such as clays, carbon nanotubes, etc which are often used for the enhancement of physical, mechanical and thermal properties of PBT nanocomposites, are described. This chapter also emphasizes the most recent development in PBT-layered silicate nanocomposites.",
journal = "Handbook of Engineering and Speciality Thermoplastics: Polyethers and Polyesters",
booktitle = "Poly(butylene terephthalate)-Synthesis, Properties, Application",
volume = "3",
pages = "127-180",
doi = "10.1002/9781118104729.ch5"
}

Antić, V.,& Pergal, M.. (2011). Poly(butylene terephthalate)-Synthesis, Properties, Application. in Handbook of Engineering and Speciality Thermoplastics: Polyethers and Polyesters, 3, 127-180.
https://doi.org/10.1002/9781118104729.ch5

Antić V, Pergal M. Poly(butylene terephthalate)-Synthesis, Properties, Application. in Handbook of Engineering and Speciality Thermoplastics: Polyethers and Polyesters. 2011;3:127-180.
doi:10.1002/9781118104729.ch5 .

Antić, Vesna, Pergal, Marija, "Poly(butylene terephthalate)-Synthesis, Properties, Application" in Handbook of Engineering and Speciality Thermoplastics: Polyethers and Polyesters, 3 (2011):127-180,
https://doi.org/10.1002/9781118104729.ch5 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Govedarica, Milutin
AU  - Antić, Mališa
AU  - Đonlagić, Jasna
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/630
AB  - A series of novel thermoplastic elastomers, based on poly(butylene terephthalate) (PBT) and polycaprolactone-block-polydimethylsiloxane-b/ock-polycaprolactone (PCL-PDMS-PCL), with various mass fractions, were synthesized through melt polycondensation. In the synthesis of the poly(ester-siloxane)s, the PCL blocks served as a compatibilizer for the non-polar PDMS blocks and the polar comonomers dimethyl terephthalate and 1,4-butanediol. The introduction of PCL-PDMS-PCL soft segments resulted in an improvement of the miscibility of the reaction mixture and therefore in higher molecular weight polymers. The content of hard PBT segments in the polymer chains was varied from 10 to 80 mass%. The degree of crystallinity of the poly(ester-siloxane)s was determined using differential scanning calorimetry and wide-angle X-ray scattering. The introduction of PCL-PDMS-PCL soft segments into the polymer main chains reduced the crystallinity of the hard segments and altered related properties such as melting temperature and storage modulus, and also modified the surface properties. The thermal stability of the poly(ester-siloxane)s was higher than that of the PBT homopolymer. The inclusion of the siloxane prepolymer with terminal PCL into the macromolecular chains increased the molecular weight of the copolymers, the homogeneity of the samples in terms of composition and structure and the thermal stability. It also resulted in mechanical properties which could be tailored.
PB  - Wiley, Hoboken
T2  - Polymer International
T1  - Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone
VL  - 59
IS  - 6
SP  - 796
EP  - 807
DO  - 10.1002/pi.2791
ER  - 

@article{
author = "Antić, Vesna and Pergal, Marija and Govedarica, Milutin and Antić, Mališa and Đonlagić, Jasna",
year = "2010",
abstract = "A series of novel thermoplastic elastomers, based on poly(butylene terephthalate) (PBT) and polycaprolactone-block-polydimethylsiloxane-b/ock-polycaprolactone (PCL-PDMS-PCL), with various mass fractions, were synthesized through melt polycondensation. In the synthesis of the poly(ester-siloxane)s, the PCL blocks served as a compatibilizer for the non-polar PDMS blocks and the polar comonomers dimethyl terephthalate and 1,4-butanediol. The introduction of PCL-PDMS-PCL soft segments resulted in an improvement of the miscibility of the reaction mixture and therefore in higher molecular weight polymers. The content of hard PBT segments in the polymer chains was varied from 10 to 80 mass%. The degree of crystallinity of the poly(ester-siloxane)s was determined using differential scanning calorimetry and wide-angle X-ray scattering. The introduction of PCL-PDMS-PCL soft segments into the polymer main chains reduced the crystallinity of the hard segments and altered related properties such as melting temperature and storage modulus, and also modified the surface properties. The thermal stability of the poly(ester-siloxane)s was higher than that of the PBT homopolymer. The inclusion of the siloxane prepolymer with terminal PCL into the macromolecular chains increased the molecular weight of the copolymers, the homogeneity of the samples in terms of composition and structure and the thermal stability. It also resulted in mechanical properties which could be tailored.",
publisher = "Wiley, Hoboken",
journal = "Polymer International",
title = "Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone",
volume = "59",
number = "6",
pages = "796-807",
doi = "10.1002/pi.2791"
}

Antić, V., Pergal, M., Govedarica, M., Antić, M.,& Đonlagić, J.. (2010). Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone. in Polymer International
Wiley, Hoboken., 59(6), 796-807.
https://doi.org/10.1002/pi.2791

Antić V, Pergal M, Govedarica M, Antić M, Đonlagić J. Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone. in Polymer International. 2010;59(6):796-807.
doi:10.1002/pi.2791 .

Antić, Vesna, Pergal, Marija, Govedarica, Milutin, Antić, Mališa, Đonlagić, Jasna, "Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone" in Polymer International, 59, no. 6 (2010):796-807,
https://doi.org/10.1002/pi.2791 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Antić, Mališa
AU  - Đonlagić, Jasna
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/727
AB  - Two series of thermoplastic elastomers (TPES), based on poly(dimethylsiloxane) (PDMS) as the soft segment and poly(butylene terephthalate) (PBT) as the hard segment, were analyzed by dynamic mechanical spectroscopy. In the first TPES series the lengths of both hard and soft segments were varied while the mass ratio of the hard to soft segments was nearly constant (about 60 mass%). In the second series, the mass ratio of hard and soft segments was varied in the range from 60/40 to 40/60, with a constant length of soft PDMS segments. The influence of the structure and composition of TPESs on the rheological properties, such as complex dynamic viscosity, μ*, the storage, G', and loss, G', shear modulus as well as the microphase separation transition temperature, TMST, was examined. The obtained results showed that the storage modulus of the TPESs increased in a rubbery plateau region with increase in degree of crystallinity. The rheological measurements of TPESs also showed that a microphase reorganization occurred during the melting process. The microphase separation transition temperatures were in the range from 220 to 234°C. In the isotropic molten state, the complex dynamic viscosity increased with increasing both the content and length of hard PBT segments.
AB  - Dve serije termoplastičnih elastomera (TPES) na bazi poli(dimetilsiloksana) kao mekog segmenta i poli(butilentereftalata) kao tvrdog segmenta su analizirane dinamičko-mehaničkom spektroskopijom. U prvoj TPES seriji varirane su dužine tvrdih i mekih segmenata dok je njihov maseni odnos bio skoro konstantan (oko 60 mas%). U drugoj seriji, odnos tvrdih i mekih segmenata je variran u opsegu od 60/40 do 40/60, dok je dužina mekih PDMS segmenata bila konstantna. Ispitan je uticaj strukture i sastava TPES kopolimera na reološka svojstva, kao što su kompleksni dinamički viskozitet, μ*, moduli sačuvane, G', i izgubljene energije, G', i temperatura mikrofaznog razdvajanja, TMST. Dobijeni rezultati su pokazali da su uzorci sa većim stepenom kristaliničnosti imali i veće module sačuvane energije u gumolikom platou. Reološka merenja su takođe pokazala da svi TPES uzorci ispoljavaju mikrofaznu reorganizaciju u procesu topljenja. Temperature mikrofaznog razdvajanja su bile u opsegu od 220 do 234°C. U izotropskom rastopu, kompleksni dinamički viskoziteti su rasli sa povećanjem sadržaja i dužine PBT segmenata.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Rheological behaviour of thermoplastic poly(ester-siloxane)s
T1  - Reološko ponašanje termoplastičnih poli(estar-siloksana)
VL  - 64
IS  - 6
SP  - 537
EP  - 545
DO  - 10.2298/HEMIND101015067A
ER  - 

@article{
author = "Antić, Vesna and Pergal, Marija and Antić, Mališa and Đonlagić, Jasna",
year = "2010",
abstract = "Two series of thermoplastic elastomers (TPES), based on poly(dimethylsiloxane) (PDMS) as the soft segment and poly(butylene terephthalate) (PBT) as the hard segment, were analyzed by dynamic mechanical spectroscopy. In the first TPES series the lengths of both hard and soft segments were varied while the mass ratio of the hard to soft segments was nearly constant (about 60 mass%). In the second series, the mass ratio of hard and soft segments was varied in the range from 60/40 to 40/60, with a constant length of soft PDMS segments. The influence of the structure and composition of TPESs on the rheological properties, such as complex dynamic viscosity, μ*, the storage, G', and loss, G', shear modulus as well as the microphase separation transition temperature, TMST, was examined. The obtained results showed that the storage modulus of the TPESs increased in a rubbery plateau region with increase in degree of crystallinity. The rheological measurements of TPESs also showed that a microphase reorganization occurred during the melting process. The microphase separation transition temperatures were in the range from 220 to 234°C. In the isotropic molten state, the complex dynamic viscosity increased with increasing both the content and length of hard PBT segments., Dve serije termoplastičnih elastomera (TPES) na bazi poli(dimetilsiloksana) kao mekog segmenta i poli(butilentereftalata) kao tvrdog segmenta su analizirane dinamičko-mehaničkom spektroskopijom. U prvoj TPES seriji varirane su dužine tvrdih i mekih segmenata dok je njihov maseni odnos bio skoro konstantan (oko 60 mas%). U drugoj seriji, odnos tvrdih i mekih segmenata je variran u opsegu od 60/40 do 40/60, dok je dužina mekih PDMS segmenata bila konstantna. Ispitan je uticaj strukture i sastava TPES kopolimera na reološka svojstva, kao što su kompleksni dinamički viskozitet, μ*, moduli sačuvane, G', i izgubljene energije, G', i temperatura mikrofaznog razdvajanja, TMST. Dobijeni rezultati su pokazali da su uzorci sa većim stepenom kristaliničnosti imali i veće module sačuvane energije u gumolikom platou. Reološka merenja su takođe pokazala da svi TPES uzorci ispoljavaju mikrofaznu reorganizaciju u procesu topljenja. Temperature mikrofaznog razdvajanja su bile u opsegu od 220 do 234°C. U izotropskom rastopu, kompleksni dinamički viskoziteti su rasli sa povećanjem sadržaja i dužine PBT segmenata.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Rheological behaviour of thermoplastic poly(ester-siloxane)s, Reološko ponašanje termoplastičnih poli(estar-siloksana)",
volume = "64",
number = "6",
pages = "537-545",
doi = "10.2298/HEMIND101015067A"
}

Antić, V., Pergal, M., Antić, M.,& Đonlagić, J.. (2010). Rheological behaviour of thermoplastic poly(ester-siloxane)s. in Hemijska industrija
Association of Chemical Engineers of Serbia., 64(6), 537-545.
https://doi.org/10.2298/HEMIND101015067A

Antić V, Pergal M, Antić M, Đonlagić J. Rheological behaviour of thermoplastic poly(ester-siloxane)s. in Hemijska industrija. 2010;64(6):537-545.
doi:10.2298/HEMIND101015067A .

Antić, Vesna, Pergal, Marija, Antić, Mališa, Đonlagić, Jasna, "Rheological behaviour of thermoplastic poly(ester-siloxane)s" in Hemijska industrija, 64, no. 6 (2010):537-545,
https://doi.org/10.2298/HEMIND101015067A . .

TY  - JOUR
AU  - Vučković, Marija V.
AU  - Antić, Vesna
AU  - Govedarica, Milutin
AU  - Đonlagić, Jasna
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3177
AB  - A series of thermoplastic elastomers based on ethylene oxide- poly(dimethylsiloxane)-ethylene oxide (EO-PDMS-EO), as the soft segment, and poly(butylene terephthalate) (PBT), as the hard segment, were synthesized by catalyzed two-step, melt transesterification reaction of dimethyl terephthalate (DMT) with 1, 4-butanediol (BD) and α, ω-dihydroxy-(EO-PDMS-EO). Copolymers with a content of hard PBT segments between 40 and 90 mass % and a constant length of the soft EO-PDMS-EO segments were prepared. The siloxane prepolymer with hydrophilic terminal EO units was used to improve the miscibility between the polar comonomers, DMT and BD, and the nonpolar PDMS. The molecular structure and composition of the copolymers were determined by 1HNMR spectroscopy, whereas the effectiveness of the incorporation of α, ω-dihydroxy-(EO-PDMS-EO) into the copolymer chains was verified by chloroform extraction. The effects of the structure and composition of the copolymers on the melting temperatures and the degree of crystallinity, as well as on the thermal degradation stability and some rheological properties, were studied. It was demonstrated that the degree of crystallinity, the melting and crystallization temperatures of the copolymers increased with increasing mass fraction of the PBT segments. The thermal stability of the copolymers was lower than that of PBT homopolymer, because of the presence of thermoliable ether bonds in the soft segments.
PB  - Wiley
T2  - Journal of Applied Polymer Science
T1  - Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide
VL  - 115
IS  - 6
SP  - 3205
EP  - 3216
DO  - 10.1002/app.31416
ER  - 

@article{
author = "Vučković, Marija V. and Antić, Vesna and Govedarica, Milutin and Đonlagić, Jasna",
year = "2010",
abstract = "A series of thermoplastic elastomers based on ethylene oxide- poly(dimethylsiloxane)-ethylene oxide (EO-PDMS-EO), as the soft segment, and poly(butylene terephthalate) (PBT), as the hard segment, were synthesized by catalyzed two-step, melt transesterification reaction of dimethyl terephthalate (DMT) with 1, 4-butanediol (BD) and α, ω-dihydroxy-(EO-PDMS-EO). Copolymers with a content of hard PBT segments between 40 and 90 mass % and a constant length of the soft EO-PDMS-EO segments were prepared. The siloxane prepolymer with hydrophilic terminal EO units was used to improve the miscibility between the polar comonomers, DMT and BD, and the nonpolar PDMS. The molecular structure and composition of the copolymers were determined by 1HNMR spectroscopy, whereas the effectiveness of the incorporation of α, ω-dihydroxy-(EO-PDMS-EO) into the copolymer chains was verified by chloroform extraction. The effects of the structure and composition of the copolymers on the melting temperatures and the degree of crystallinity, as well as on the thermal degradation stability and some rheological properties, were studied. It was demonstrated that the degree of crystallinity, the melting and crystallization temperatures of the copolymers increased with increasing mass fraction of the PBT segments. The thermal stability of the copolymers was lower than that of PBT homopolymer, because of the presence of thermoliable ether bonds in the soft segments.",
publisher = "Wiley",
journal = "Journal of Applied Polymer Science",
title = "Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide",
volume = "115",
number = "6",
pages = "3205-3216",
doi = "10.1002/app.31416"
}

Vučković, M. V., Antić, V., Govedarica, M.,& Đonlagić, J.. (2010). Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide. in Journal of Applied Polymer Science
Wiley., 115(6), 3205-3216.
https://doi.org/10.1002/app.31416

Vučković MV, Antić V, Govedarica M, Đonlagić J. Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide. in Journal of Applied Polymer Science. 2010;115(6):3205-3216.
doi:10.1002/app.31416 .

Vučković, Marija V., Antić, Vesna, Govedarica, Milutin, Đonlagić, Jasna, "Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide" in Journal of Applied Polymer Science, 115, no. 6 (2010):3205-3216,
https://doi.org/10.1002/app.31416 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Vučković, Marija V.
AU  - Dojčinović, Biljana
AU  - Antić, Mališa
AU  - Barać, Miroljub B.
AU  - Govedarica, Milutin
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/467
AB  - The modality of the incorporation of silanol-terminated siloxanes into copolymers with butylene terephthalate were investigated and determined. Besides siloxanes, the other participants in this well-known copolymerization, called the catalyzed two-step transesterification/polycondensation reaction, are dimethyl terephthalate and 1,4-butanediol. The employed approach to this problem was to exactly examine all the possibilities of the reactions between particular pairs of reactants, as well as of single reactants. The final results were, firstly, that reactions between siloxanes and dimethyl terephthalate did not occur and, secondly, that the only possibility for silanol-terminated siloxanes to be incorporated into the copolymers was by means of their condensation with 1,4-butanediol. This means that siloxanes are incorporated into the copolymer by ether and not by ester linkages.
PB  - Elsevier
T2  - Reactive and Functional Polymers
T1  - About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers
VL  - 68
IS  - 4
SP  - 851
EP  - 860
DO  - 10.1016/j.reactfunctpolym.2007.12.004
ER  - 

@article{
author = "Antić, Vesna and Vučković, Marija V. and Dojčinović, Biljana and Antić, Mališa and Barać, Miroljub B. and Govedarica, Milutin",
year = "2008",
abstract = "The modality of the incorporation of silanol-terminated siloxanes into copolymers with butylene terephthalate were investigated and determined. Besides siloxanes, the other participants in this well-known copolymerization, called the catalyzed two-step transesterification/polycondensation reaction, are dimethyl terephthalate and 1,4-butanediol. The employed approach to this problem was to exactly examine all the possibilities of the reactions between particular pairs of reactants, as well as of single reactants. The final results were, firstly, that reactions between siloxanes and dimethyl terephthalate did not occur and, secondly, that the only possibility for silanol-terminated siloxanes to be incorporated into the copolymers was by means of their condensation with 1,4-butanediol. This means that siloxanes are incorporated into the copolymer by ether and not by ester linkages.",
publisher = "Elsevier",
journal = "Reactive and Functional Polymers",
title = "About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers",
volume = "68",
number = "4",
pages = "851-860",
doi = "10.1016/j.reactfunctpolym.2007.12.004"
}

Antić, V., Vučković, M. V., Dojčinović, B., Antić, M., Barać, M. B.,& Govedarica, M.. (2008). About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers. in Reactive and Functional Polymers
Elsevier., 68(4), 851-860.
https://doi.org/10.1016/j.reactfunctpolym.2007.12.004

Antić V, Vučković MV, Dojčinović B, Antić M, Barać MB, Govedarica M. About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers. in Reactive and Functional Polymers. 2008;68(4):851-860.
doi:10.1016/j.reactfunctpolym.2007.12.004 .

Antić, Vesna, Vučković, Marija V., Dojčinović, Biljana, Antić, Mališa, Barać, Miroljub B., Govedarica, Milutin, "About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers" in Reactive and Functional Polymers, 68, no. 4 (2008):851-860,
https://doi.org/10.1016/j.reactfunctpolym.2007.12.004 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Vučković, Marija V.
AU  - Đonlagić, Jasna A.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4625
AB  - Thermoplastic poly(ester-siloxane)s (TPES) and poly(ester-ether-siloxane)s, (TPEES), based on poly(butylene terephthalate) (PBT) as the hard segment and different siloxane-prepolymers as the soft segments, were prepared. The TPES and TPEES were synthesized by catalyzed two-step transesterification from dimethyl terephthalate, (DMT), 1,4-butanediol, (BD) and a siloxane-prepolymer. Incorporation of dicarboxypropyl- or disilanol-terminated poly(dimethylsiloxane) s (PDMS) into the polar poly(butylene terephthalate) chains resulted in rather inhomogeneous TPES copolymers, which was a consequence of a prononuced phase separation of the polar and non-polar reactants during synthesis. Two concepts were employed to avoid or reduce phase separation: 1) the use of siloxane-containing triblock prepolymers with hydrophilic terminal blocks, such as ethylene oxide (EO), poly(propylene oxide) (PPO) or poly(caprolactone) (PLC) when the terminal blocks serve as a compatibilizer between the extremely non-polar PDMS and the polar DMT and BD, and 2) the use of a high-boiling solvent (1,2,4-trichlorobenzene) during the first phase of the reaction. Homogeneity was significantly improved in the case of copolymers based on PCL-PDMS-PCL.
AB  - U okviru ovog rada su sintetisani termoplastični poli(estar–siloksani) (TPES)
i poli(estar–etar–siloksani) (TPEES), sa tvrdim segmentima na bazi poli(butilentereftalata)
(PBT) i mekim segmentima na bazi različitih siloksanskih pretpolimera.
TPES i TPEES su sintetisani katalizovanom reakcijom dvostepene transesterifikacije,
iz dimetilterftalata (DMT), 1,4-butandiola (BD) i odgovarajućeg siloksanskog
pretpolimera. Pri ugradnji dikarboksipropil- ili disilanol-terminiranih
poli(dimetilsiloksana) (PDMS) u polarne poli(butilentereftalatne) lance dobijeni
su prilično nehomogeni TPES kopolimeri, što je bila posledica loše menjivosti
reaktanata tokom odigravanja reakcije. Primenjena su dva koncepta da bi se izbeglo
ili smanjilo fazno razdvajanje reakcione smene tokom sinteze organo–siloksanskih
kopolimera: 1) primena siloksanskih triblok-pretpolimera kod kojih su
hidrofilni terminalni blokovi, izgrađeni od etilenoksida (EO), poli(propilenoksida)
(PPO) ili poli(kaprolaktona) (PLC), imali funkciju kompatibilizatora između
 nepolarnog PDMS-a i polarnih reaktanata, DMT-a i BD-a i 2) primena rastvaranja
 visoke temperature ključanja (1,2,4-trihlorbenzena) za vreme izvođenja prve
faze reakcije. Značajno povećanje homogenosti postignuto je kod kopolimera na bazi
PCL–PDMS–PCL segmenata.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s
T1  - Primena reaktivnih siloksanskih pretpolimera za sintezu poli(ester-siloksana) i poli(ester-etar-siloksana)
VL  - 72
IS  - 2
SP  - 139
EP  - 150
DO  - 10.2298/JSC0702139A
ER  - 

@article{
author = "Antić, Vesna and Vučković, Marija V. and Đonlagić, Jasna A.",
year = "2007",
abstract = "Thermoplastic poly(ester-siloxane)s (TPES) and poly(ester-ether-siloxane)s, (TPEES), based on poly(butylene terephthalate) (PBT) as the hard segment and different siloxane-prepolymers as the soft segments, were prepared. The TPES and TPEES were synthesized by catalyzed two-step transesterification from dimethyl terephthalate, (DMT), 1,4-butanediol, (BD) and a siloxane-prepolymer. Incorporation of dicarboxypropyl- or disilanol-terminated poly(dimethylsiloxane) s (PDMS) into the polar poly(butylene terephthalate) chains resulted in rather inhomogeneous TPES copolymers, which was a consequence of a prononuced phase separation of the polar and non-polar reactants during synthesis. Two concepts were employed to avoid or reduce phase separation: 1) the use of siloxane-containing triblock prepolymers with hydrophilic terminal blocks, such as ethylene oxide (EO), poly(propylene oxide) (PPO) or poly(caprolactone) (PLC) when the terminal blocks serve as a compatibilizer between the extremely non-polar PDMS and the polar DMT and BD, and 2) the use of a high-boiling solvent (1,2,4-trichlorobenzene) during the first phase of the reaction. Homogeneity was significantly improved in the case of copolymers based on PCL-PDMS-PCL., U okviru ovog rada su sintetisani termoplastični poli(estar–siloksani) (TPES)
i poli(estar–etar–siloksani) (TPEES), sa tvrdim segmentima na bazi poli(butilentereftalata)
(PBT) i mekim segmentima na bazi različitih siloksanskih pretpolimera.
TPES i TPEES su sintetisani katalizovanom reakcijom dvostepene transesterifikacije,
iz dimetilterftalata (DMT), 1,4-butandiola (BD) i odgovarajućeg siloksanskog
pretpolimera. Pri ugradnji dikarboksipropil- ili disilanol-terminiranih
poli(dimetilsiloksana) (PDMS) u polarne poli(butilentereftalatne) lance dobijeni
su prilično nehomogeni TPES kopolimeri, što je bila posledica loše menjivosti
reaktanata tokom odigravanja reakcije. Primenjena su dva koncepta da bi se izbeglo
ili smanjilo fazno razdvajanje reakcione smene tokom sinteze organo–siloksanskih
kopolimera: 1) primena siloksanskih triblok-pretpolimera kod kojih su
hidrofilni terminalni blokovi, izgrađeni od etilenoksida (EO), poli(propilenoksida)
(PPO) ili poli(kaprolaktona) (PLC), imali funkciju kompatibilizatora između
 nepolarnog PDMS-a i polarnih reaktanata, DMT-a i BD-a i 2) primena rastvaranja
 visoke temperature ključanja (1,2,4-trihlorbenzena) za vreme izvođenja prve
faze reakcije. Značajno povećanje homogenosti postignuto je kod kopolimera na bazi
PCL–PDMS–PCL segmenata.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s, Primena reaktivnih siloksanskih pretpolimera za sintezu poli(ester-siloksana) i poli(ester-etar-siloksana)",
volume = "72",
number = "2",
pages = "139-150",
doi = "10.2298/JSC0702139A"
}

Antić, V., Vučković, M. V.,& Đonlagić, J. A.. (2007). Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 72(2), 139-150.
https://doi.org/10.2298/JSC0702139A

Antić V, Vučković MV, Đonlagić JA. Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s. in Journal of the Serbian Chemical Society. 2007;72(2):139-150.
doi:10.2298/JSC0702139A .

Antić, Vesna, Vučković, Marija V., Đonlagić, Jasna A., "Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s" in Journal of the Serbian Chemical Society, 72, no. 2 (2007):139-150,
https://doi.org/10.2298/JSC0702139A . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Antić, Mališa
AU  - Govedarica, Milutin
AU  - Dvornić, Petar R.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4263
AB  - The kinetics of the formation of poly(carbosiloxane), as well as of alkylsubstituted poly(siloxane), by Karstedt's catalyst catalyzed hydrosilylation were investigated. Linear poly(carbosiloxane), poly[(1,1,3,3-tetramethyldisiloxanyl)ethylene], (PTMDSE), was obtained by hydrosilylation of 1,3-divinyltetramethyldisiloxane (DVTMDS) and 1,1,3,3-tetramethyldisiloxane (TMDS), while alkyl-substituted poly(siloxane), poly(methyldecylsiloxane), (PMDS), was synthesized by hydrosilylation of poly(methylhydrosiloxane) (PMHS) and 1-decene. To investigate the kinetics of PTMDSE formation, two series of experiments were performed at reaction temperatures ranging from 25 to 56°C and with catalyst concentrations ranging from 7.0 × 10-6 to 3.1 × 10-5 mol Pt/mol CH=CH2. A series of experiments was performed at reaction temperatures ranging from 28 to 48°C, with catalyst concentrations of 7.0 × 10-6 mol of Pt per mol of CH=CH2, when kinetics of PMDS formation was investigated. All reactions were carried out in bulk, with equimolar amounts of the reacting Si-H and CH=CH2 groups. The course of the reactions was monitored by following the disappearance of the Si-H bands using quantitative infrared spectroscopy. The results obtained showed typical first order kinetics for the PTMDSE formation, consistent with the proposed reaction mechanism. In the case of PMDS an induction period occurred at lower reaction temperatures, but disappeared at 44°C and the rate of Si-H conversion also started to follow the first-order kinetics.
PB  - Wiley-Blackwell
T2  - Journal of Polymer Science, Part A: Polymer Chemistry
T1  - Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation
VL  - 45
IS  - 11
SP  - 2246
EP  - 2258
DO  - 10.1002/pola.21992
ER  - 

@article{
author = "Antić, Vesna and Antić, Mališa and Govedarica, Milutin and Dvornić, Petar R.",
year = "2007",
abstract = "The kinetics of the formation of poly(carbosiloxane), as well as of alkylsubstituted poly(siloxane), by Karstedt's catalyst catalyzed hydrosilylation were investigated. Linear poly(carbosiloxane), poly[(1,1,3,3-tetramethyldisiloxanyl)ethylene], (PTMDSE), was obtained by hydrosilylation of 1,3-divinyltetramethyldisiloxane (DVTMDS) and 1,1,3,3-tetramethyldisiloxane (TMDS), while alkyl-substituted poly(siloxane), poly(methyldecylsiloxane), (PMDS), was synthesized by hydrosilylation of poly(methylhydrosiloxane) (PMHS) and 1-decene. To investigate the kinetics of PTMDSE formation, two series of experiments were performed at reaction temperatures ranging from 25 to 56°C and with catalyst concentrations ranging from 7.0 × 10-6 to 3.1 × 10-5 mol Pt/mol CH=CH2. A series of experiments was performed at reaction temperatures ranging from 28 to 48°C, with catalyst concentrations of 7.0 × 10-6 mol of Pt per mol of CH=CH2, when kinetics of PMDS formation was investigated. All reactions were carried out in bulk, with equimolar amounts of the reacting Si-H and CH=CH2 groups. The course of the reactions was monitored by following the disappearance of the Si-H bands using quantitative infrared spectroscopy. The results obtained showed typical first order kinetics for the PTMDSE formation, consistent with the proposed reaction mechanism. In the case of PMDS an induction period occurred at lower reaction temperatures, but disappeared at 44°C and the rate of Si-H conversion also started to follow the first-order kinetics.",
publisher = "Wiley-Blackwell",
journal = "Journal of Polymer Science, Part A: Polymer Chemistry",
title = "Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation",
volume = "45",
number = "11",
pages = "2246-2258",
doi = "10.1002/pola.21992"
}

Antić, V., Antić, M., Govedarica, M.,& Dvornić, P. R.. (2007). Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation. in Journal of Polymer Science, Part A: Polymer Chemistry
Wiley-Blackwell., 45(11), 2246-2258.
https://doi.org/10.1002/pola.21992

Antić V, Antić M, Govedarica M, Dvornić PR. Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation. in Journal of Polymer Science, Part A: Polymer Chemistry. 2007;45(11):2246-2258.
doi:10.1002/pola.21992 .

Antić, Vesna, Antić, Mališa, Govedarica, Milutin, Dvornić, Petar R., "Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation" in Journal of Polymer Science, Part A: Polymer Chemistry, 45, no. 11 (2007):2246-2258,
https://doi.org/10.1002/pola.21992 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Antić, Mališa
AU  - Govedarica, Milutin N.
AU  - Dvornić, Petar R.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4298
AB  - Poly(methylhydrosiloxane) [PMHS], prepared by siloxane equilibration reaction, was used for the hydrosilylation with 1-decene to obtain poly(methyldecylsiloxane) [PMDS]. Pt(0)-1,3-divinyltetramethyldisiloxane complex was used as a catalyst for hydrosilylation reaction. In order to investigate the kinetics of the formation of PMDS, a series of experiments was performed at different reaction temperatures (from 48 to 64 degrees C) with catalyst concentrations of 7.0 center dot 10(-7) Mol Of Pt per mol of CH=CH2. All reactions were carried out in bulk, with equimolar amounts of the reacting Si-H and CH=CH2 groups. The course of the reactions was monitored by following the disappearance of the Si-H bands by quantitative infrared spectroscopy. The obtained results show that an induction period occurs at lower reaction temperatures and that the rate of Si-H conversion follows the first-order kinetics.
PB  - Switzerland : Trans Tech Publications LTD
T2  - Materials Science Forum
T1  - Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene
VL  - 555
SP  - 485
EP  - 490
DO  - 10.4028/www.scientific.net/MSF.555.485
ER  - 

@article{
author = "Antić, Vesna and Antić, Mališa and Govedarica, Milutin N. and Dvornić, Petar R.",
year = "2007",
abstract = "Poly(methylhydrosiloxane) [PMHS], prepared by siloxane equilibration reaction, was used for the hydrosilylation with 1-decene to obtain poly(methyldecylsiloxane) [PMDS]. Pt(0)-1,3-divinyltetramethyldisiloxane complex was used as a catalyst for hydrosilylation reaction. In order to investigate the kinetics of the formation of PMDS, a series of experiments was performed at different reaction temperatures (from 48 to 64 degrees C) with catalyst concentrations of 7.0 center dot 10(-7) Mol Of Pt per mol of CH=CH2. All reactions were carried out in bulk, with equimolar amounts of the reacting Si-H and CH=CH2 groups. The course of the reactions was monitored by following the disappearance of the Si-H bands by quantitative infrared spectroscopy. The obtained results show that an induction period occurs at lower reaction temperatures and that the rate of Si-H conversion follows the first-order kinetics.",
publisher = "Switzerland : Trans Tech Publications LTD",
journal = "Materials Science Forum",
title = "Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene",
volume = "555",
pages = "485-490",
doi = "10.4028/www.scientific.net/MSF.555.485"
}

Antić, V., Antić, M., Govedarica, M. N.,& Dvornić, P. R.. (2007). Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene. in Materials Science Forum
Switzerland : Trans Tech Publications LTD., 555, 485-490.
https://doi.org/10.4028/www.scientific.net/MSF.555.485

Antić V, Antić M, Govedarica MN, Dvornić PR. Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene. in Materials Science Forum. 2007;555:485-490.
doi:10.4028/www.scientific.net/MSF.555.485 .

Antić, Vesna, Antić, Mališa, Govedarica, Milutin N., Dvornić, Petar R., "Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene" in Materials Science Forum, 555 (2007):485-490,
https://doi.org/10.4028/www.scientific.net/MSF.555.485 . .

TY  - JOUR
AU  - Vučković, Marija V.
AU  - Antić, Vesna
AU  - Dojčinović, Biljana
AU  - Govedarica, Milutin
AU  - Đonlagić, Jasna
PY  - 2006
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5715
AB  - A series of novel thermoplastic elastomers based on ABA-type triblock prepolymers, poly[(propylene oxide)–(dimethylsiloxane)–(propylene oxide)] (PPO-PDMS-PPO), as the soft segments, and poly(butylene terephthalate) (PBT), as the hard segments, was synthesized by catalyzed two-step melt transesterification of dimethyl terephthalate (DMT) with 1,4-butanediol (BD) and α,ω-dihydroxy-(PPO-PDMS-PPO) (Mn = 2930 g mol−1). Several copolymers with a content of hard PBT segments between 40 and 60 mass% and a constant length of the soft PPO-PDMS-PPO segments were prepared. The siloxane-containing triblock prepolymer with
hydrophilic terminal PPO blocks was used to improve the compatibility between the polar comonomers, i.e. DMT and BD, and the non-polar PDMS segments. The structure and composition of the copolymers were examined using 1H NMR spectroscopy, while the effectiveness of the incorporation of α,ω-dihydroxy-(PPO-PDMS-PPO) prepolymer into the copolyester chains was controlled by chloroform extraction. The effect of the structure and
composition of the copolymers on the transition temperatures (Tm and Tg) and the thermal and thermo-oxidative degradation stability, as well as on the degree of crystallinity, and some rheological properties, were studied.
PB  - Wiley
T2  - Polymer International
T1  - Synthesis and characterization of poly(ester ether siloxane)s
VL  - 55
IS  - 11
SP  - 1304
EP  - 1314
DO  - 10.1002/pi.2085
ER  - 

@article{
author = "Vučković, Marija V. and Antić, Vesna and Dojčinović, Biljana and Govedarica, Milutin and Đonlagić, Jasna",
year = "2006",
abstract = "A series of novel thermoplastic elastomers based on ABA-type triblock prepolymers, poly[(propylene oxide)–(dimethylsiloxane)–(propylene oxide)] (PPO-PDMS-PPO), as the soft segments, and poly(butylene terephthalate) (PBT), as the hard segments, was synthesized by catalyzed two-step melt transesterification of dimethyl terephthalate (DMT) with 1,4-butanediol (BD) and α,ω-dihydroxy-(PPO-PDMS-PPO) (Mn = 2930 g mol−1). Several copolymers with a content of hard PBT segments between 40 and 60 mass% and a constant length of the soft PPO-PDMS-PPO segments were prepared. The siloxane-containing triblock prepolymer with
hydrophilic terminal PPO blocks was used to improve the compatibility between the polar comonomers, i.e. DMT and BD, and the non-polar PDMS segments. The structure and composition of the copolymers were examined using 1H NMR spectroscopy, while the effectiveness of the incorporation of α,ω-dihydroxy-(PPO-PDMS-PPO) prepolymer into the copolyester chains was controlled by chloroform extraction. The effect of the structure and
composition of the copolymers on the transition temperatures (Tm and Tg) and the thermal and thermo-oxidative degradation stability, as well as on the degree of crystallinity, and some rheological properties, were studied.",
publisher = "Wiley",
journal = "Polymer International",
title = "Synthesis and characterization of poly(ester ether siloxane)s",
volume = "55",
number = "11",
pages = "1304-1314",
doi = "10.1002/pi.2085"
}

Vučković, M. V., Antić, V., Dojčinović, B., Govedarica, M.,& Đonlagić, J.. (2006). Synthesis and characterization of poly(ester ether siloxane)s. in Polymer International
Wiley., 55(11), 1304-1314.
https://doi.org/10.1002/pi.2085

Vučković MV, Antić V, Dojčinović B, Govedarica M, Đonlagić J. Synthesis and characterization of poly(ester ether siloxane)s. in Polymer International. 2006;55(11):1304-1314.
doi:10.1002/pi.2085 .

Vučković, Marija V., Antić, Vesna, Dojčinović, Biljana, Govedarica, Milutin, Đonlagić, Jasna, "Synthesis and characterization of poly(ester ether siloxane)s" in Polymer International, 55, no. 11 (2006):1304-1314,
https://doi.org/10.1002/pi.2085 . .

TY  - JOUR
AU  - Dojčinović, Biljana
AU  - Antić, Vesna
AU  - Vučković, Marija V.
AU  - Đonlagić, Jasna
PY  - 2005
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/216
AB  - Two series of thermoplastic elastomers, based on poly(dimethylsiloxane) PDMS, as the soft segment and poly(butylene terephthalate), PBT, as the hard segment, were synthesized by catalyzed transesterification, from dimethyl terephthalate, DMT, silanol-terminated poly(dimethylsiloxane), PDMS-OH Mn=1750g/mol, and 1,4-butanediol, BD. The mole ratio of the starting comonomers was selected to result in a constant hard to soft weight ratio of 55:45. The first series was synthesized in order to determine the optimal mole ratio of BD and DMT for the synthesis of high molecular weight thermoplastic poly(ester-siloxane)s, TPESs. The second series was performed in the presence of the high-boiling solvent, 1,2,4-trichlorbenzene in order to increase the mixing between the extremely non-polar siloxane prepolymer and the polar reactants, DMT and BD, and, therefore, avoid phase separation during synthesis. The structure and composition of the synthesized poly(ester-siloxane)s were verified by 1H-NMR spectroscopy, while the melting temperatures and degree of crystallinity were determined by differential scanning calorimetry (DSC). The effectiveness of the incorporation of the silanol-terminated poly( dimethylsiloxane) into the polyester chains was verified by chloroform extraction. The rheological properties of the poly(ester-siloxane)s were investigated by dynamic mechanical spectroscopy (DMA).
AB  - Dve serije termoplastičnih elastomera na bazi poli(dimetilsiloksana) kao mekog segmenta i poli(butilentereftalata) kao tvrdog segmenta sintetisane su katalizovanom transesterifikacijom polazeći od dimetiltereftalata, DMT silanol-terminarnog poli(dimetil-siloksana), PDMS-OH, Mn=1750g/mol i 1,4-butandiola, BD. Molski odnos početnih komonomera odabran je tako da je rezultovao u konstantnom masenom odnosu tvrdih i mekih segmenata od 55:45. Prva serija je sintetisana sa ciljem da se odredi optimalan molski odnos komonomera BD i DMT za dobijanje termoplastičnih elastomera velikih molarnih masa. U drugoj seriji sinteze su izvođene u prisustvu teško isparljivog rastvarača 1,2,4-trihlorbenzena sa ciljem da se poveća mešljivost izuzetno nepolarnog poli(dimetilsiloksanskog)pretpolimera i polarnih reaktanata, kao što su DMT i BD i samim tim da se izbegne fazna separacija u reakcionoj smeši tokom sinteze. Struktura i sastav sintetisanih poli(estar-siloksana) potvrđeni su 1H-NMR spektroskopijom, dok su temperatura topljenja i stepen kristaliničnosti određeni diferencijalnom skenirajućom kalometrijom (DSC). Efikasnost ugradnje silanol-terminiranog poli(dimetilsiloksana) u poliestarske lance utvrđena je na osnovu ekstrakcije hloroformom. Reološka svojstva poli(estara-siloksana) ispitana su dinamičko-mehaničkom spektroskopijom.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Synthesis of thermoplastic poly(ester-siloxane)s in the melt and in solution
T1  - Sinteza termoplastičnih poli(estar-siloksana) u rastopu i rastvoru
VL  - 70
IS  - 12
SP  - 1469
EP  - 1485
DO  - 10.2298/JSC0512469D
ER  - 

@article{
author = "Dojčinović, Biljana and Antić, Vesna and Vučković, Marija V. and Đonlagić, Jasna",
year = "2005",
abstract = "Two series of thermoplastic elastomers, based on poly(dimethylsiloxane) PDMS, as the soft segment and poly(butylene terephthalate), PBT, as the hard segment, were synthesized by catalyzed transesterification, from dimethyl terephthalate, DMT, silanol-terminated poly(dimethylsiloxane), PDMS-OH Mn=1750g/mol, and 1,4-butanediol, BD. The mole ratio of the starting comonomers was selected to result in a constant hard to soft weight ratio of 55:45. The first series was synthesized in order to determine the optimal mole ratio of BD and DMT for the synthesis of high molecular weight thermoplastic poly(ester-siloxane)s, TPESs. The second series was performed in the presence of the high-boiling solvent, 1,2,4-trichlorbenzene in order to increase the mixing between the extremely non-polar siloxane prepolymer and the polar reactants, DMT and BD, and, therefore, avoid phase separation during synthesis. The structure and composition of the synthesized poly(ester-siloxane)s were verified by 1H-NMR spectroscopy, while the melting temperatures and degree of crystallinity were determined by differential scanning calorimetry (DSC). The effectiveness of the incorporation of the silanol-terminated poly( dimethylsiloxane) into the polyester chains was verified by chloroform extraction. The rheological properties of the poly(ester-siloxane)s were investigated by dynamic mechanical spectroscopy (DMA)., Dve serije termoplastičnih elastomera na bazi poli(dimetilsiloksana) kao mekog segmenta i poli(butilentereftalata) kao tvrdog segmenta sintetisane su katalizovanom transesterifikacijom polazeći od dimetiltereftalata, DMT silanol-terminarnog poli(dimetil-siloksana), PDMS-OH, Mn=1750g/mol i 1,4-butandiola, BD. Molski odnos početnih komonomera odabran je tako da je rezultovao u konstantnom masenom odnosu tvrdih i mekih segmenata od 55:45. Prva serija je sintetisana sa ciljem da se odredi optimalan molski odnos komonomera BD i DMT za dobijanje termoplastičnih elastomera velikih molarnih masa. U drugoj seriji sinteze su izvođene u prisustvu teško isparljivog rastvarača 1,2,4-trihlorbenzena sa ciljem da se poveća mešljivost izuzetno nepolarnog poli(dimetilsiloksanskog)pretpolimera i polarnih reaktanata, kao što su DMT i BD i samim tim da se izbegne fazna separacija u reakcionoj smeši tokom sinteze. Struktura i sastav sintetisanih poli(estar-siloksana) potvrđeni su 1H-NMR spektroskopijom, dok su temperatura topljenja i stepen kristaliničnosti određeni diferencijalnom skenirajućom kalometrijom (DSC). Efikasnost ugradnje silanol-terminiranog poli(dimetilsiloksana) u poliestarske lance utvrđena je na osnovu ekstrakcije hloroformom. Reološka svojstva poli(estara-siloksana) ispitana su dinamičko-mehaničkom spektroskopijom.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Synthesis of thermoplastic poly(ester-siloxane)s in the melt and in solution, Sinteza termoplastičnih poli(estar-siloksana) u rastopu i rastvoru",
volume = "70",
number = "12",
pages = "1469-1485",
doi = "10.2298/JSC0512469D"
}

Dojčinović, B., Antić, V., Vučković, M. V.,& Đonlagić, J.. (2005). Synthesis of thermoplastic poly(ester-siloxane)s in the melt and in solution. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 70(12), 1469-1485.
https://doi.org/10.2298/JSC0512469D

Dojčinović B, Antić V, Vučković MV, Đonlagić J. Synthesis of thermoplastic poly(ester-siloxane)s in the melt and in solution. in Journal of the Serbian Chemical Society. 2005;70(12):1469-1485.
doi:10.2298/JSC0512469D .

Dojčinović, Biljana, Antić, Vesna, Vučković, Marija V., Đonlagić, Jasna, "Synthesis of thermoplastic poly(ester-siloxane)s in the melt and in solution" in Journal of the Serbian Chemical Society, 70, no. 12 (2005):1469-1485,
https://doi.org/10.2298/JSC0512469D . .

TY  - JOUR
AU  - Antić, Mališa
AU  - Vučković, Marija V.
AU  - Antić, Vesna
AU  - Govedarica, Milutin
PY  - 2004
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5716
AB  - A number of carboxypropyl- terminated poly(siloxane)s were prepared using equilibration
polymerization reactions. Dimethyldichlorosilane hydrolysate, DDSH, was applied as a substitute
for the otherwise used cyclic siloxane monomers. As DDSH contains S-OH end-groups, it was of interest to analyze the obtained linear polymers with regard to the kind and amount of their
terminating units. In order to clarify this question, the IR and 1H NMR spectroscopy, end-group
analysis, vapor pressure osmometry and GPC detection methods were used. All the results showed that the polymers obtained from DDSH were carboxypropyl- terminated.
PB  - Trans Tech Publications Ltd.
T2  - Materials Science Forum
T1  - Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s
VL  - 453-454
SP  - 199
EP  - 204
DO  - 10.4028/www.scientific.net/MSF.453-454.199
ER  - 

@article{
author = "Antić, Mališa and Vučković, Marija V. and Antić, Vesna and Govedarica, Milutin",
year = "2004",
abstract = "A number of carboxypropyl- terminated poly(siloxane)s were prepared using equilibration
polymerization reactions. Dimethyldichlorosilane hydrolysate, DDSH, was applied as a substitute
for the otherwise used cyclic siloxane monomers. As DDSH contains S-OH end-groups, it was of interest to analyze the obtained linear polymers with regard to the kind and amount of their
terminating units. In order to clarify this question, the IR and 1H NMR spectroscopy, end-group
analysis, vapor pressure osmometry and GPC detection methods were used. All the results showed that the polymers obtained from DDSH were carboxypropyl- terminated.",
publisher = "Trans Tech Publications Ltd.",
journal = "Materials Science Forum",
title = "Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s",
volume = "453-454",
pages = "199-204",
doi = "10.4028/www.scientific.net/MSF.453-454.199"
}

Antić, M., Vučković, M. V., Antić, V.,& Govedarica, M.. (2004). Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s. in Materials Science Forum
Trans Tech Publications Ltd.., 453-454, 199-204.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.199

Antić M, Vučković MV, Antić V, Govedarica M. Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s. in Materials Science Forum. 2004;453-454:199-204.
doi:10.4028/www.scientific.net/MSF.453-454.199 .

Antić, Mališa, Vučković, Marija V., Antić, Vesna, Govedarica, Milutin, "Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s" in Materials Science Forum, 453-454 (2004):199-204,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.199 . .

TY  - JOUR
AU  - Antić, Vesna
AU  - Vučković, Marija V.
AU  - Govedarica, Milutin
PY  - 2004
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5718
AB  - U radu je opisana sinteza blok kopolimera sa poli(butilentereftalatnim) tvrdim segmentima i poli(dimetilsiloksanskim) mekim segmentima. Cilj rada je da se ispita iproveri da lije primenljiva klasična metoda dvostepene transesterifikacije/polikondenzacije u rastopu, koja se koristi za dobijanje estar-etarskih blok kopolimera i u slučaju estar-siloksanskih blok kopolimera. Pošto reaktant koji sadrži siloksansku komponentu može da ima različite završne grupe, ispitana su dva karakteristična slučaja: a) reaktant sa estarskim završnim grupama, dimetil-estar a, (ù-dikarboksipropil-poli(dimetilsil oksana), i b) reaktant sa hidroksilnim završnim grupama, α, ω-dihidroksi-poli(propilenoksid-di metilsiloksan-propilenoksid). Sintetizovane su tri serije kopolimera, pri čemu su kao reaktanti korišćeni poli(dimetilsiloksani) sa estarskim (dve serije) i hidroksilnim završnim grupama. Struktura i sastav kopolimera određeni su 1H NMR spektroskopijom. Predložen je mehanizam, odnosno redosled reakcionih koraka koji vode formiranju kopolimera.
PB  - Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Sinteza estar-siloksanskih multiblok kopolimera
VL  - 58
IS  - 11
SP  - 499
EP  - 504
DO  - 10.2298/HEMIND0411499A
ER  - 

@article{
author = "Antić, Vesna and Vučković, Marija V. and Govedarica, Milutin",
year = "2004",
abstract = "U radu je opisana sinteza blok kopolimera sa poli(butilentereftalatnim) tvrdim segmentima i poli(dimetilsiloksanskim) mekim segmentima. Cilj rada je da se ispita iproveri da lije primenljiva klasična metoda dvostepene transesterifikacije/polikondenzacije u rastopu, koja se koristi za dobijanje estar-etarskih blok kopolimera i u slučaju estar-siloksanskih blok kopolimera. Pošto reaktant koji sadrži siloksansku komponentu može da ima različite završne grupe, ispitana su dva karakteristična slučaja: a) reaktant sa estarskim završnim grupama, dimetil-estar a, (ù-dikarboksipropil-poli(dimetilsil oksana), i b) reaktant sa hidroksilnim završnim grupama, α, ω-dihidroksi-poli(propilenoksid-di metilsiloksan-propilenoksid). Sintetizovane su tri serije kopolimera, pri čemu su kao reaktanti korišćeni poli(dimetilsiloksani) sa estarskim (dve serije) i hidroksilnim završnim grupama. Struktura i sastav kopolimera određeni su 1H NMR spektroskopijom. Predložen je mehanizam, odnosno redosled reakcionih koraka koji vode formiranju kopolimera.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Sinteza estar-siloksanskih multiblok kopolimera",
volume = "58",
number = "11",
pages = "499-504",
doi = "10.2298/HEMIND0411499A"
}

Antić, V., Vučković, M. V.,& Govedarica, M.. (2004). Sinteza estar-siloksanskih multiblok kopolimera. in Hemijska industrija
Association of the Chemical Engineers of Serbia., 58(11), 499-504.
https://doi.org/10.2298/HEMIND0411499A

Antić V, Vučković MV, Govedarica M. Sinteza estar-siloksanskih multiblok kopolimera. in Hemijska industrija. 2004;58(11):499-504.
doi:10.2298/HEMIND0411499A .

Antić, Vesna, Vučković, Marija V., Govedarica, Milutin, "Sinteza estar-siloksanskih multiblok kopolimera" in Hemijska industrija, 58, no. 11 (2004):499-504,
https://doi.org/10.2298/HEMIND0411499A . .

TY  - JOUR
AU  - Ćirić-Marjanović, Gordana
AU  - Marjanović, Budimir
AU  - Stamenković, Vojislav
AU  - Vitnik, Željko
AU  - Antić, Vesna
AU  - Juranić, Ivan
PY  - 2002
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/59
AB  - Poly-(1-naphthylamine) films were synthesized potentiodinamically and potentiostatically from 1-naphthylamine in neutral acetonitrile medium using a platinum electrode. These polymer films were investigated by infrared spectroscopy. Contrary to earlier published results neglecting the stereochemistry of the poly-(1-naphthylamine), we predict on the basis of quantum stereochemical analysis of the possible structural subunits of the polymer, that the ordinary N–C(4) coupled product is not predominant in the polymer because it is far removed from the expected planarity. Based on the results of IR investigations and semiempirical quantum chemical calculations, it is proposed that the polymer products are formed via mixed N–C(4), N–C(5) and N–C(7) coupling routes. The heats of formation of the oxidized 1-naphthylamine dimers and hexamers were calculated.
AB  - Poli-(1-naftilaminski) filmovi sintetisani su potenciostatski i potenciodinamički iz neutralnog acetonitrilnog rastvora 1-naftilamina na platinskoj elektrodi. Ovi polimerni filmovi ispitivani su IR spektroskopijom. Za razliku od ranije publikovanih rezultata koji su zanemarivali stereohemiju poli-1(-naftilamina), u ovom radu se predviđa na osnovu kvantne stereohemijske analize mogućih strukturnih jedinica polimera da uobičajeni N–C(4) kuplovani produkt nije predominantan u polimeru, jer njegova struktura nije planarna. Na osnovu rezultata IR ispitivanja i semiempirijskih kvantno-hemijskih proračuna mi pretpostavljeno je da se polimerni produkti formiraju kombinovanim N–C(4), N–C(5) i N–C(7) načinima vezivanja 1-naftilamina. U ovom radu su takođe izračunate toplote nastajanja oksidovanih dimera i heksamera 1-naftilamina.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Structure and stereochemistry of electrochemically synthesized poly-(l-naphthylamine) from neutral aceto- nitrile solution
T1  - Struktura i stereohemija poli-(1-naftilamina) elektrohemijski sintetisanog u neutralnom acetonitrilnom rastvoru
VL  - 67
IS  - 12
SP  - 867
EP  - 877
DO  - 10.2298/JSC0212867C
ER  - 

@article{
author = "Ćirić-Marjanović, Gordana and Marjanović, Budimir and Stamenković, Vojislav and Vitnik, Željko and Antić, Vesna and Juranić, Ivan",
year = "2002",
abstract = "Poly-(1-naphthylamine) films were synthesized potentiodinamically and potentiostatically from 1-naphthylamine in neutral acetonitrile medium using a platinum electrode. These polymer films were investigated by infrared spectroscopy. Contrary to earlier published results neglecting the stereochemistry of the poly-(1-naphthylamine), we predict on the basis of quantum stereochemical analysis of the possible structural subunits of the polymer, that the ordinary N–C(4) coupled product is not predominant in the polymer because it is far removed from the expected planarity. Based on the results of IR investigations and semiempirical quantum chemical calculations, it is proposed that the polymer products are formed via mixed N–C(4), N–C(5) and N–C(7) coupling routes. The heats of formation of the oxidized 1-naphthylamine dimers and hexamers were calculated., Poli-(1-naftilaminski) filmovi sintetisani su potenciostatski i potenciodinamički iz neutralnog acetonitrilnog rastvora 1-naftilamina na platinskoj elektrodi. Ovi polimerni filmovi ispitivani su IR spektroskopijom. Za razliku od ranije publikovanih rezultata koji su zanemarivali stereohemiju poli-1(-naftilamina), u ovom radu se predviđa na osnovu kvantne stereohemijske analize mogućih strukturnih jedinica polimera da uobičajeni N–C(4) kuplovani produkt nije predominantan u polimeru, jer njegova struktura nije planarna. Na osnovu rezultata IR ispitivanja i semiempirijskih kvantno-hemijskih proračuna mi pretpostavljeno je da se polimerni produkti formiraju kombinovanim N–C(4), N–C(5) i N–C(7) načinima vezivanja 1-naftilamina. U ovom radu su takođe izračunate toplote nastajanja oksidovanih dimera i heksamera 1-naftilamina.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Structure and stereochemistry of electrochemically synthesized poly-(l-naphthylamine) from neutral aceto- nitrile solution, Struktura i stereohemija poli-(1-naftilamina) elektrohemijski sintetisanog u neutralnom acetonitrilnom rastvoru",
volume = "67",
number = "12",
pages = "867-877",
doi = "10.2298/JSC0212867C"
}

Ćirić-Marjanović, G., Marjanović, B., Stamenković, V., Vitnik, Ž., Antić, V.,& Juranić, I.. (2002). Structure and stereochemistry of electrochemically synthesized poly-(l-naphthylamine) from neutral aceto- nitrile solution. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 67(12), 867-877.
https://doi.org/10.2298/JSC0212867C

Ćirić-Marjanović G, Marjanović B, Stamenković V, Vitnik Ž, Antić V, Juranić I. Structure and stereochemistry of electrochemically synthesized poly-(l-naphthylamine) from neutral aceto- nitrile solution. in Journal of the Serbian Chemical Society. 2002;67(12):867-877.
doi:10.2298/JSC0212867C .

Ćirić-Marjanović, Gordana, Marjanović, Budimir, Stamenković, Vojislav, Vitnik, Željko, Antić, Vesna, Juranić, Ivan, "Structure and stereochemistry of electrochemically synthesized poly-(l-naphthylamine) from neutral aceto- nitrile solution" in Journal of the Serbian Chemical Society, 67, no. 12 (2002):867-877,
https://doi.org/10.2298/JSC0212867C . .