PROCESS FOR PREPARATION OF MODIFIED POLYPHENYLENE ETHER OR RELATED POLYMERS AND THE USE THEREOF IN MODIFIED HIGH TEMPERATURE RIGID POLYMER OF VINYL SUBSTITUTED AROMATICS

摘要

Process for the manufacture of modified polyphenylene ether or structurally related polymers comprising: the reaction of polyphenylene ether or structurally related polymer with a non-cyclic acid anhydride, in the presence of a pyridine derivative substituted by an amine group as catalyst, and in a vinyl substituted aromatic monomer as solvent: modified polyphenylene ethers so obtained and use of them for the manufacture of modified high temperature rigid poly(vinyl substituted aromatic) polymer compositions.