Alkylperoxyformate-terminated polycarbonates and their conversion to hydroxy-terminated polycarbonates
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0415071A2
公开(公告)日:1991-03-06
Alkylperoxyformate-terminated polycarbonates are prepared by the reaction of an organic dihydroxy compounds preferably a bisphenol, with phosgene in one or two steps, in the presence of an alkyl hydroperoxide such as t-butyl or 2-phenyl-2-propyl hydroperoxide. The alkylperoxyformate-terminated polycarbonates may be converted to hydroxy-terminated polycarbonates by heating in the melt.
烷基过氧酰基封端聚碳酸酯是通过有机二羟基化合物(最好是双酚)与光气在烷基过氧化氢(如叔丁基过氧化氢或 2-苯基-2-丙基过氧化氢)存在下进行一步或两步反应制备而成。以烷基过氧甲酸酯为端基的聚碳酸酯可通过在熔体中加热转化为以羟基为端基的聚碳酸酯。