申请人:SEISAN KAIHATSU KAGAKU KENKYUSHO
公开号:EP0440106A2
公开(公告)日:1991-08-07
Polyarylene thioethers are easily prepared by an oxidative polymerization of an aromatic compound of the formula (I)
wherein R¹, R², R³ and R⁴ are each independently a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group, and Y is a hydrogen atom or a group of the formula (II)
wherein R⁵, R⁶, R⁷ and R⁸ are each independently a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group and X is -O-, -S-, a methylene group or an ethylene group with a sulfidizing agent in the presence of an acid and an oxidizing agent, or in the presence of an acid, a catalyst for oxidative polymerization and oxygen, or in the presence of a Friedel-Crafts catalyst.
通过式 (I) 的芳香族化合物的氧化聚合可轻松制备聚芳硫醚,式 (I) 中 R¹、R²、R³ 和 R⁴ 各自独立地为氢原子、卤素原子、低级烷基或低级烷氧基,Y 为氢原子或式 (II) 的基团,式 (II) 中 R⁵、R⁶、 R⁵、R⁶、R⁷ 和 R⁸ 各自独立地为氢原子、卤素原子、低级烷基或低级烷氧基,X 为-O-、-S-、亚甲基或亚乙基,在有酸和氧化剂存在下,或在有酸、氧化聚合催化剂和氧存在下,或在有 Friedel-Crafts 催化剂存在下,加入硫化剂。