Govedarica, Milutin

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789f8fc1-c7c9-41d3-a504-a84cfd0579cf
  • Govedarica, Milutin (11)
  • Govedarica, Milutin N. (1)
Projects

Author's Bibliography

Synthesis and Characterization of Novel Urethane-Siloxane Copolymers with a High Content of PCL-PDMS-PCL Segments

Pergal, Marija; Antić, Vesna; Govedarica, Milutin; Gođevac, Dejan; Ostojić, Sanja; Đonlagić, Jasna

(Wiley-Blackwell, Malden, 2011)

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 . .
3
46
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59

Copolymers based on poly(butylene terephthalate) and polycaprolactone-block-polydimethylsiloxane-block-polycaprolactone

Antić, Vesna; Pergal, Marija; Govedarica, Milutin; Antić, Mališa; Đonlagić, Jasna

(Wiley, Hoboken, 2010)

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 . .
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12
18

Synthesis and characterization of copolymers based on poly(butylene terephthalate) and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide

Vučković, Marija V.; Antić, Vesna; Govedarica, Milutin; Đonlagić, Jasna

(Wiley, 2010)

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 . .
11
14
19

About the mode of incorporation of silanol-terminated polysiloxanes into butylene terephthalate-b-dimethylsiloxane copolymers

Antić, Vesna; Vučković, Marija V.; Dojčinović, Biljana; Antić, Mališa; Barać, Miroljub B.; Govedarica, Milutin

(Elsevier, 2008)

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 . .
3
4
6

Kinetics and mechanism of the formation of poly[(1,1,3,3- tetramethyldisiloxanyl)ethylene] and poly(methyldecylsiloxane) by hydrosilylation

Antić, Vesna; Antić, Mališa; Govedarica, Milutin; Dvornić, Petar R.

(Wiley-Blackwell, 2007)

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 . .
20
18
18

Kinetics of the Formation of Poly(methyldecylsiloxane) by Hydrosilylation of Poly(methylhydrosiloxane) and 1-Decene

Antić, Vesna; Antić, Mališa; Govedarica, Milutin N.; Dvornić, Petar R.

(Switzerland : Trans Tech Publications LTD, 2007)

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 . .
1
1

Synthesis and characterization of poly(ester ether siloxane)s

Vučković, Marija V.; Antić, Vesna; Dojčinović, Biljana; Govedarica, Milutin; Đonlagić, Jasna

(Wiley, 2006)

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 . .
19
13
22

Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH)

Vučković, Marija V.; Govedarica, Milutin

(Serbian Chemical Society, 2006)

TY  - JOUR
AU  - Vučković, Marija V.
AU  - Govedarica, Milutin
PY  - 2006
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5717
AB  - Dimethyldichlorosilane hydrolysate, DDSH, the linear part of which contains SiOH end groups, can be used in the preparation of difunctionally terminated (any end groups other than SiOH) polysiloxanes via equilibration polymerisations. In such a case, the problem arises: as to whether the obtained functionalised polymers also contain silanol end groups. To the best of our knowledge, the only direct and the most precise analytical procedure to clarify this question is the Karl Fischer titration/determination of SiOH groups. This determination was performed on a
model system consisting of trimethylsilyl terminated polysiloxanes, and it was shown that the obtained polymers contained no SiOH groups.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH)
T1  - Odredjivanje silanolnih krajnjih grupa u polisiloksanima dobijenim iz dimetildihlorsilan hidrolizata (ddsh)
VL  - 71
IS  - 3
SP  - 257
EP  - 261
DO  - doi.org/10.2298/JSC0603257V
ER  - 
@article{
author = "Vučković, Marija V. and Govedarica, Milutin",
year = "2006",
abstract = "Dimethyldichlorosilane hydrolysate, DDSH, the linear part of which contains SiOH end groups, can be used in the preparation of difunctionally terminated (any end groups other than SiOH) polysiloxanes via equilibration polymerisations. In such a case, the problem arises: as to whether the obtained functionalised polymers also contain silanol end groups. To the best of our knowledge, the only direct and the most precise analytical procedure to clarify this question is the Karl Fischer titration/determination of SiOH groups. This determination was performed on a
model system consisting of trimethylsilyl terminated polysiloxanes, and it was shown that the obtained polymers contained no SiOH groups.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH), Odredjivanje silanolnih krajnjih grupa u polisiloksanima dobijenim iz dimetildihlorsilan hidrolizata (ddsh)",
volume = "71",
number = "3",
pages = "257-261",
doi = "doi.org/10.2298/JSC0603257V"
}
Vučković, M. V.,& Govedarica, M.. (2006). Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH). in Journal of the Serbian Chemical Society
Serbian Chemical Society., 71(3), 257-261.
https://doi.org/doi.org/10.2298/JSC0603257V
Vučković MV, Govedarica M. Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH). in Journal of the Serbian Chemical Society. 2006;71(3):257-261.
doi:doi.org/10.2298/JSC0603257V .
Vučković, Marija V., Govedarica, Milutin, "Determination of silanol end groups in polysiloxanes obtained from dimethyldichlorosilane hydrolysate (DDSH)" in Journal of the Serbian Chemical Society, 71, no. 3 (2006):257-261,
https://doi.org/doi.org/10.2298/JSC0603257V . .

Dimethyldichlorosilane Hydrolysate as a Substitute for Cyclic Monomers in the Preparation of Functional Poly(siloxane)s

Antić, Mališa; Vučković, Marija V.; Antić, Vesna; Govedarica, Milutin

(Trans Tech Publications Ltd., 2004)

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 . .
2
2

Sinteza estar-siloksanskih multiblok kopolimera

Antić, Vesna; Vučković, Marija V.; Govedarica, Milutin

(Association of the Chemical Engineers of Serbia, 2004)

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 . .

Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction

Govedarica, Milutin

(Belgrade : Serbian Chemical Society, 2000)

TY  - JOUR
AU  - Govedarica, Milutin
PY  - 2000
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3499
AB  - The relative activities of four disiloxanes toward the cation exchange resin, which was used as an equilibration catalyst, were determined in such a way that the equilibrium initialy present in an arbitrary chosen equilibrate was disturbed by adding the respective disiloxanes to it, and then by recording the viscosity of the equilibrating mixtures as a function of reaction time.As a result, a set of different viscosity-reaction time relationships was obtained, which implies different activities of disiloxanes toward the catalyst. In this way the following decreasing order of activities was established : 1,3-tetramethyldisiloxane>1,3-divinyltetramethyldisiloxane >hexamethyldisiloxane >1,3-bis( 3-carboxypropyl)tetramethyldisiloxane.
AB  - Одређене су релативне активности четири дисилоксана према катјонској јоноизмењивачкој смоли, катализатору реакције еквилибрације, и то тако што је додатком дисилоксана поремећена првобитно присутна равнотежа у произвољно одабраном еквилибрату, а затим је праћен вискозитет у зависности времена трајања реакције еквилибрације.Као резултат, добијене су различите зависности вискозитет-време трајања реакције, што указује на различиту активност дисилоксана према катализатору. На овај начин установљен је следећи опадајући редослед активности: 1,3-тетраметилдисилоксан >1,3-дивинилтетраметилдисилоксан>xексаметилдисилоксан>1,,3-бис(3-карбоксипропил)тетраметилдисилоксан.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction
T1  - Aктивност дисилоксана према катјонској јоноимењивачкој смоли - катализатору реакције силоксанске еквилибрације
VL  - 65
IS  - 9
SP  - 639
EP  - 643
DO  - 10.2298/JSC0009639G
ER  - 
@article{
author = "Govedarica, Milutin",
year = "2000",
abstract = "The relative activities of four disiloxanes toward the cation exchange resin, which was used as an equilibration catalyst, were determined in such a way that the equilibrium initialy present in an arbitrary chosen equilibrate was disturbed by adding the respective disiloxanes to it, and then by recording the viscosity of the equilibrating mixtures as a function of reaction time.As a result, a set of different viscosity-reaction time relationships was obtained, which implies different activities of disiloxanes toward the catalyst. In this way the following decreasing order of activities was established : 1,3-tetramethyldisiloxane>1,3-divinyltetramethyldisiloxane >hexamethyldisiloxane >1,3-bis( 3-carboxypropyl)tetramethyldisiloxane., Одређене су релативне активности четири дисилоксана према катјонској јоноизмењивачкој смоли, катализатору реакције еквилибрације, и то тако што је додатком дисилоксана поремећена првобитно присутна равнотежа у произвољно одабраном еквилибрату, а затим је праћен вискозитет у зависности времена трајања реакције еквилибрације.Као резултат, добијене су различите зависности вискозитет-време трајања реакције, што указује на различиту активност дисилоксана према катализатору. На овај начин установљен је следећи опадајући редослед активности: 1,3-тетраметилдисилоксан >1,3-дивинилтетраметилдисилоксан>xексаметилдисилоксан>1,,3-бис(3-карбоксипропил)тетраметилдисилоксан.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction, Aктивност дисилоксана према катјонској јоноимењивачкој смоли - катализатору реакције силоксанске еквилибрације",
volume = "65",
number = "9",
pages = "639-643",
doi = "10.2298/JSC0009639G"
}
Govedarica, M.. (2000). Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 65(9), 639-643.
https://doi.org/10.2298/JSC0009639G
Govedarica M. Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction. in Journal of the Serbian Chemical Society. 2000;65(9):639-643.
doi:10.2298/JSC0009639G .
Govedarica, Milutin, "Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction" in Journal of the Serbian Chemical Society, 65, no. 9 (2000):639-643,
https://doi.org/10.2298/JSC0009639G . .
4
5
6

Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions

Dvornić, Petar R.; Govedarica, Milutin; Jovanović, Jelena D.; Gerov, Vesna V.; Antić, Mališa

(Springer, 1995)

TY  - JOUR
AU  - Dvornić, Petar R.
AU  - Govedarica, Milutin
AU  - Jovanović, Jelena D.
AU  - Gerov, Vesna V.
AU  - Antić, Mališa
PY  - 1995
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3481
AB  - A new general procedure for preparation of functionalized oligopolysiloxanes of predetermined molecular weight is described. It utilizes heterogeneously catalyzed siloxane equilibration polymerization reactions which do not require troublesome and sometimes difficult post-preparative work-up procedures usually encountered with the well known homogeneously catalyzed corresponding reactions. The method is described using as example the preparation of α, ω-telechelic vinyldimethylsiloxy-oligopolydimethylsiloxanes from octamethylcyclotetrasiloxane and 1,3-divinyltetramethyldisiloxane, but reference to the preparations of trimethylsiloxy-, dimethylsiloxy-and carboxypropyldimethylsiloxyoligopolydimethylsiloxanes, oligopolymethylhydridosiloxanes or their copolymers is also made.
PB  - Springer
T2  - Polymer Bulletin
T1  - Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions
VL  - 35
IS  - 5
SP  - 539
EP  - 545
DO  - 10.1007/BF00324106
ER  - 
@article{
author = "Dvornić, Petar R. and Govedarica, Milutin and Jovanović, Jelena D. and Gerov, Vesna V. and Antić, Mališa",
year = "1995",
abstract = "A new general procedure for preparation of functionalized oligopolysiloxanes of predetermined molecular weight is described. It utilizes heterogeneously catalyzed siloxane equilibration polymerization reactions which do not require troublesome and sometimes difficult post-preparative work-up procedures usually encountered with the well known homogeneously catalyzed corresponding reactions. The method is described using as example the preparation of α, ω-telechelic vinyldimethylsiloxy-oligopolydimethylsiloxanes from octamethylcyclotetrasiloxane and 1,3-divinyltetramethyldisiloxane, but reference to the preparations of trimethylsiloxy-, dimethylsiloxy-and carboxypropyldimethylsiloxyoligopolydimethylsiloxanes, oligopolymethylhydridosiloxanes or their copolymers is also made.",
publisher = "Springer",
journal = "Polymer Bulletin",
title = "Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions",
volume = "35",
number = "5",
pages = "539-545",
doi = "10.1007/BF00324106"
}
Dvornić, P. R., Govedarica, M., Jovanović, J. D., Gerov, V. V.,& Antić, M.. (1995). Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions. in Polymer Bulletin
Springer., 35(5), 539-545.
https://doi.org/10.1007/BF00324106
Dvornić PR, Govedarica M, Jovanović JD, Gerov VV, Antić M. Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions. in Polymer Bulletin. 1995;35(5):539-545.
doi:10.1007/BF00324106 .
Dvornić, Petar R., Govedarica, Milutin, Jovanović, Jelena D., Gerov, Vesna V., Antić, Mališa, "Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions" in Polymer Bulletin, 35, no. 5 (1995):539-545,
https://doi.org/10.1007/BF00324106 . .
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