申请人:GENERAL ELECTRIC COMPANY
公开号:EP0522767A2
公开(公告)日:1993-01-13
Hydroxy group-containing polymers, particularly polyphenylene ethers, are capped by reaction with a chlorotriazine in the presence of a substantially inert organic liquid such as toluene, water, a phase transfer catalyst and a tertiary amine from a specific class, preferably a trialkylamine such as triethylamine or dimethyl-n-butylamine. The reaction proceeds rapidly and in good yield.
含羟基的聚合物,特别是聚苯醚,在基本惰性的有机液体(如甲苯)、水、相转移催化剂和特定类别的叔胺(最好是三烷基胺,如三乙胺或二甲基正丁胺)的存在下,通过与氯三嗪反应进行封端。反应进行迅速,产率高。