Synthesis of new polyfunctional cage oligosilsesquioxanes and cyclic siloxanes by thiol-ene addition

dc.contributor.author	Rozga-Wijas, K.
dc.contributor.author	Chojnowski, J.
dc.date.accessioned	2021-08-16T10:04:16Z
dc.date.available	2021-08-16T10:04:16Z
dc.date.issued	2012-02-05
dc.identifier.issn	23105496
dc.identifier.uri	http://hdl.handle.net/123456789/5861
dc.description	7p:, ill.	en_US
dc.description.abstract	A novel octakis-2{[3-(trimethoxysilyl)propyl]thio}ethyl-octasilsesqioxane (POSS-M24) was synthesized by radical thiol-ene addition of 3-mercaptopropyltrimethoxysilane, (MPTMS) to octavinyloctasilsesquioxane, (POSS-V8) in the presence of 2,20 azobisisobutyronitryl under mild conditions (60 C, toluene solution). Nano-building POSS units bearing both types of groups, 2-[3-(trimethoxysilyl)propylthio]-ethyl and vinyl, pendant to the POSS-cage were obtained by partial addition of MPTMS to the vinyl functions. Finally the thiol-ene addition of MPTMS to 2,4,6-trivinyl-2,4,6-trimethylcyclotrisiloxane (V3) and 2,4,6,8-tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane (V4) were explored. The structures of the thiol-ene addition products were confirmed by 29 and mass Spectroscopy	en_US
dc.language.iso	en	en_US
dc.publisher	University of Cape Coast	en_US
dc.subject	Thiol-ene addition	en_US
dc.subject	Ligosilsesquioxane	en_US
dc.subject	Cyclosiloxanes	en_US
dc.subject	POSS	en_US
dc.subject	Functionalized POSS	en_US
dc.subject	3-mercaptopropyltrimethoxysilane	en_US
dc.title	Synthesis of new polyfunctional cage oligosilsesquioxanes and cyclic siloxanes by thiol-ene addition	en_US
dc.type	Article	en_US