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  - 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 . .

TY  - JOUR
AU  - Dvornić, Petar R.
PY  - 1992
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3475
AB  - Four principal synthetic methods for preparation of exactly alternating silarylene-siloxane polymers: the chlorosilane, the acetoxysilane, the aminosilane and the ureidosilane polymerization reactions, were compared under equivalent experimental conditions. As indicated earlier, polymers with considerably different molecular weights were obtained. The highest molecular weight polymer resulted from the ureidosilane reaction, while the lowest ones were obtained from the chlorosilane and the acetoxysilane routes. Because thorough precautions were taken to ensure equally favorable conditions in all preparations, these results seem to support a hypothesis that the latter two reactions are limited by the occurrence of degradative desilytation side reactions which are inherent to the nature of these polymerization systems.
PB  - Springer
T2  - Polymer Bulletin
T1  - Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers
VL  - 28
IS  - 3
SP  - 339
EP  - 344
DO  - 10.1007/BF00294832
ER  - 

@article{
author = "Dvornić, Petar R.",
year = "1992",
abstract = "Four principal synthetic methods for preparation of exactly alternating silarylene-siloxane polymers: the chlorosilane, the acetoxysilane, the aminosilane and the ureidosilane polymerization reactions, were compared under equivalent experimental conditions. As indicated earlier, polymers with considerably different molecular weights were obtained. The highest molecular weight polymer resulted from the ureidosilane reaction, while the lowest ones were obtained from the chlorosilane and the acetoxysilane routes. Because thorough precautions were taken to ensure equally favorable conditions in all preparations, these results seem to support a hypothesis that the latter two reactions are limited by the occurrence of degradative desilytation side reactions which are inherent to the nature of these polymerization systems.",
publisher = "Springer",
journal = "Polymer Bulletin",
title = "Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers",
volume = "28",
number = "3",
pages = "339-344",
doi = "10.1007/BF00294832"
}

Dvornić, P. R.. (1992). Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers. in Polymer Bulletin
Springer., 28(3), 339-344.
https://doi.org/10.1007/BF00294832

Dvornić PR. Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers. in Polymer Bulletin. 1992;28(3):339-344.
doi:10.1007/BF00294832 .

Dvornić, Petar R., "Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers" in Polymer Bulletin, 28, no. 3 (1992):339-344,
https://doi.org/10.1007/BF00294832 . .