CAS: 18387-26-3; [dimethyl(Prop-2-Enyl)Silyl]Oxy-Dimethylsilicon
该化合物是一种多功能有机硅化合物,其特点是反应性过合基和硅氧烷功能组.这种液态单体具有极强的热稳定性和低粘度,适合硅酮聚合物,交叉连接剂和表面改造的应用.它的Allyl 组可以参与水合反应,便于合成定制硅氧结构.该化合物与各种子体的平衡反应性和兼容性增强了其在涂层,粘合剂和特殊材料方面的用途.此外,它的水解稳定性确保了需要抗湿力的配方的可靠性能.这种二硅氧烷衍生物因其在推进功能化硅酮化学和高性能材料开发方面的作用而备受重视.
物理性质
合成工艺路线路线简述
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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.
