Disclosed is a modified polyphenylene ether having a number average molecular weight of not smaller than 4,000, which is obtained by reacting a precursory modified polyphenylene ether with a phenolic compound in the presence of a radical generator, wherein the precursory modified polyphenylene ether comprises a plurality of polyphenylene ether chains each having a terminal phenolic hydroxyl group, wherein the plurality of polyphenylene ether chains collectively have at least one terminal phenolic hydroxyl group modified and wherein not all of the terminal phenolic hydroxyl groups of the plurality of polyphenylene ether chains are modified. Also disclosed is a method for producing the modified polyphenylene ether.
本发明公开了一种平均分子量不小于 4000 的改性聚苯醚,该改性聚苯醚是由前体改性聚苯醚与
酚类化合物在自由基发生器存在下反应而得、其中前体改性聚苯醚包括多个聚苯醚链,每个聚苯醚链具有一个末端
酚羟基,多个聚苯醚链中至少有一个末端
酚羟基被改性,且多个聚苯醚链中并非所有的末端
酚羟基都被改性。还公开了一种生产改性聚苯醚的方法。