📜二异丙胺 以 乙醚 用作溶剂,化学反应生成烯丙基(二异丙基氨基)二甲基硅烷 参考文献:Silafunctional Compounds In Organic Synthesis. 33. Metalated Allylaminosilane: A New,Practical Reagent For The Stereoselective .Alpha.-Hydroxyallylation Of Aldehydes To Erythro-1,2-Diol Skeletons 标题:Silafunctional Compounds In Organic Synthesis. 33. Metalated Allylaminosilane: A New,Practical Reagent For The Stereoselective .Alpha.-Hydroxyallylation Of Aldehydes To Erythro-1,2-Diol Skeletons 摘要: Doi:10.1021/jo00381A053
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.