NEW POLYMERIC MATERIALS

摘要

A copolymer essentially consisting of : from 50 to 99 mole % of at least one recurring unit (R1), based on the total mole amount of the recurring units (R1) and (R2), wherein the recurring unit (R1) is derived from incorporation of 4,4"-terphenyl-p-diol and a dihaloaryl sulfone compound and from 1 to 50 mole % of at least one recurring unit (R2), based on the total mole amount of the recurring units (R1) and (R2), wherein the recurring unit (R2) is derived from incorporation of 4,4"-terphenyl-p-diol and a dihaloaryl ketone compound.