申请人:ARLANXEO Canada Inc.
公开号:EP3336111A1
公开(公告)日:2018-06-20
A Brønsted-Lowry acid initiator system for cationic polymerization of an ethylenically unsaturated monomer involves an initiator having a structure of Formula (I) in an anhydrous polymerization medium:
where: M is tantalum (Ta), vanadium (V) or niobium (Ni); each R1 is independently H, OR6, F, Cl, Br, I or alkyl, where R6 is H or alkyl; R2, R3, R4 and R5 are the same or different and are independently H, F, Cl, Br, I, alkyl or aryl, or two or more of R2, R3, R4 and R5 on a same benzene ring are taken together to form a bicyclic, tricyclic or tetracyclic moiety with the benzene ring, with the proviso that all of R2, R3, R4 and R5 on the same benzene ring are not H; L is absent or a molecule that coordinates to H+; and, x is 0 when L is absent, or x is 0.5 or more when L is present.
用于乙烯基不饱和单体阳离子聚合的布氏-洛氏酸引发剂体系,包括在无水聚合介质中具有式(I)结构的引发剂:
其中M 是钽(Ta)、钒(V)或铌(Ni);每个 R1 独立地是 H、OR6、F、Cl、Br、I 或烷基,其中 R6 是 H 或烷基;R2、R3、R4 和 R5 相同或不同,且独立地为 H、F、Cl、Br、I、烷基或芳基,或同一苯环上的两个或多个 R2、R3、R4 和 R5 合在一起,与苯环形成双环、三环或四环分子,但条件是同一苯环上的所有 R2、R3、R4 和 R5 都不是 H;L 不存在或与 H+ 配位的分子;以及,当 L 不存在时,x 为 0,或当 L 存在时,x 为 0.当 L 存在时,x 为 0。