Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers
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.
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Polymer Bulletin, 1992, 28, 3, 339-344Publisher:
- Springer
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IHTMTY - 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 . .