CAS: 1450-29-9; Divinyltetramethyldisilane

📜二甲基乙烯基氯硅烷置于samarium Diiodide体系中,用 四氢呋喃 用作溶剂,化学反应 5.0H,以75%的收率获得二乙烯基四甲基二硅烷
参考文献:Zavin,B. G.; Chernyavskii,A. I.; Vygodskii,Ya. S.,Doklady Chemistry,1994,Vol. 336,# 1-3,P. 97-99
标题:Zavin,B. G.; Chernyavskii,A. I.; Vygodskii,Ya. S.,Doklady Chemistry,1994,Vol. 336,# 1-3,P. 97-99

专利信息

专利号:US-11767388-B1
优先权日:2019-09-18
标 题 :Silicon-functionalized rubber
发明人：ENSIGN SETH CODY; VIELHABER MARGARET FLOOK; JOHNGRASS JENA LYNN; MA LIQING
权利人:GOODYEAR TIRE & RUBBER
摘要:The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator. The functionalized polydiene rubber composition made by this method is comprised of a polydiene rubber which is functionalized at its chain ends with a silicon containing group.

专利号:US-4937364-A
优先权日:1988-11-26
标 题:Novel disilacyclohexane compound and process for preparing the same
发明人：OKINOSHIMA HIROSHIGE
权利人:SHINETSU CHEMICAL CO
摘要:A disilacyclohexane compound represented by the following general formula (I): (I) wherein R's may be the same or different and each represent an alkyl group having from 1 to 5 carbon atoms, and the process for preparing the same. This compound is useful as a crosslinking agent in the polymer chemistry and as an intermediate for synthesis of various compounds.

专利号:US-6384172-B1
优先权日:2001-01-02
标题:Hyperbranched polycarbosilanes, polycarbosiloxanes, polycarbosilazenes and copolymers thereof
发明人：DVORNIC PETAR R; HU JIN; MEIER DALE J; NOWAK ROBERT M
权利人:MICHIGAN MOLECULAR INST
摘要:Hyperbranched polycarbosilanes, polycarbosiloxanes, polycarbosilazenes and copolymers thereof are prepared by reacting a difunctional or polyfunctional monomer having functional groups of one type (A) without any other functional groups capable of reacting significantly during polymerization, and a difunctional or polyfunctional monomer having functional groups of another type (B) without any other functional groups capable of reacting significantly during polymerization, wherein each A-functional group is reacted with a B-functional group, and wherein at least one of the monomers has a functionality of at least three. The process enables hyperbranched polycarbosilanes, polycarbosiloxanes, polycarbosilazenes and copolymers thereof to be prepared at a lower cost than with conventional synthesis processes, and provides greater flexibility in the preparation of a larger variety of different types of hyperbranched polycarbosilanes, polycarbosiloxanes, polycarbosilazenes and copolymers thereof.