MODIFIED CONJUGATED DIENE POLYMER, METHOD FOR PRODUCING THE SAME, MODIFIED CONJUGATED DIENE POLYMER COMPOSITION, AND TIRE
申请人:Asahi Kasei Chemicals Corporation
公开号:EP2338919A1
公开(公告)日:2011-06-29
There is provided a modified conjugated diene-based polymer having a silyl group substituted with one or more alkoxy groups, and one or more nitrogen atoms on the chain ends of a conjugated diene-based polymer, the modified conjugated diene-based polymer being obtained by polymerizing a conjugated diene compound, or copolymerizing a conjugated diene compound with an aromatic vinyl compound, by using a polyfunctional anionic polymerization initiator prepared from a polyvinyl aromatic compound and an organolithium compound in a range of a molar ratio (the polyvinyl aromatic compound / the organolithium compound) of from 0.05 to 1.0, so as to obtain the conjugated diene-based polymer, and by reacting a living polymer end of the conjugated diene polymer with the compound having a silyl group substituted with two or more alkoxy groups, and one or more nitrogen atoms.
本发明提供了一种改性共轭二烯基聚合物,其硅烷基被一个或多个烷氧基取代,共轭二烯基聚合物的链端有一个或多个氮原子,该改性共轭二烯基聚合物是通过聚合共轭二烯化合物获得的、或将共轭二烯化合物与芳香族乙烯基化合物共聚,方法是使用由聚乙烯芳香族化合物和有机锂化合物制备的多官能团阴离子聚合引发剂,其摩尔比(聚乙烯芳香族化合物/有机锂化合物)范围为 0.05 至 1.0 的摩尔比范围内(聚乙烯基芳香族化合物 / 有机锂化合物)制备的阴离子聚合引发剂,从而获得共轭二烯基聚合物,并将共轭二烯聚合物的活聚合物端与具有被两个或多个烷氧基取代的硅烷基和一个或多个氮原子的化合物反应。