METHOD FOR PREPARING A POLY(ETHER SULFONIMIDE OR -AMIDE)COPOLYMER USING CYCLIC OLIGOMERS

摘要

The present invention relates to a method for preparing a poly(ether sulfonimide or -amide)copolymer using cyclic oligomers, and more particularly, to a method for preparing a poly(ether sulfonimide or -amide)copolymer by preparing cyclic ether sulfone oligomers and cyclic imide or amide oligomers and subjecting the cyclic ether sulfone oligomer and cyclic imide or amide oligomer, acting as fluoride salt catalysts for alkali metals, to ring-opening copolymerization.