欧盟法规
ECHA物质C&L通报上下游产品
Chloro(chloromethyl)dimethylsilane allylmagnesium bromide allyl bromide allylmagnesium bromide (Allyl-dimethyl-silylmethyl)-phenyl-phosphinsaeure-ethylester >-2-sila-4-pentene2,2-dimethyl-1-1-(S)-2-(methoxymethyl)pyrrolidinyl-2-sila-4-pentene chloromethyldimethylphenylsilane (but-3-en-1-yl)dimethyl(phenyl)silane 氯甲基二甲基氯硅烷,氯丙烯镁 以 乙醚 用作溶剂,化学反应生成烯丙基(氯甲基)二甲硅烷
参考文献:(烯基二甲基甲硅烷基)卡宾的分子内反应
标题:(烯基二甲基甲硅烷基)卡宾的分子内反应
摘要:研究了[ch 2 = Ch(ch 2)n ](ch 3)2 Sich 2 Cl类型的化合物与钠之间的反应.提出了相应卡宾(或类胡萝卜素试剂)的中间体,并提出了在n = 0,2和3的情况下将分子内卡宾加成至烯烃键的证据.
Doi:10.1016/s0022-328X(00)87515-4
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.