申请人:SEKISUI CHEMICAL CO., LTD.
公开号:EP0464408A1
公开(公告)日:1992-01-08
A process for preparing a three-branched or four-branched star compound comprising polymerizing an olefin compound represented by the formula
wherein A is a single bond or phenylene group, and R3 is a hydrogen atom or methyl group and R4 is a monovalent organic group when A is a single bond, or R3 is a hydrogen atom and R4 is an alkyl group when A is a phenylene group, using as an initiator the adduct of a polyfunctional alkenyl ether represented by the formula (I)
wherein R1 is a hydrogen atom or methyl group, n is an integer of 3 or 4, and R2 is a trivalent organic group when n is 3 or a tetravelent organic group when n is 4 with a cation-donating compound.
一种制备三支链或四支链星状化合物的工艺,包括聚合由式表示的烯烃化合物
其中 A 为单键或亚苯基,R3 为氢原子或甲基,当 A 为单键时,R4 为单价有机基团,或当 A 为亚苯基时,R3 为氢原子,R4 为烷基,以式(I)表示的多官能团烯基醚的加合物作为引发剂
其中 R1 是氢原子或甲基,n 是 3 或 4 的整数,当 n 为 3 时,R2 是三价有机基团,当 n 为 4 时,R2 是四价有机基团。