Poly(arylene sulfide sulfone)/poly(arylene sulfide ketone) block copolymers and preparation thereof

摘要

A process is provided for preparing poly(arylene sulfide sulfone)/poly(arylene sulfide ketone) block copolymers comprising: contacting poly(arylene sulfide sulfone) prepolymer, at least one dihalobenzophenone, a sulfur source, and a polar organic compound under polymerization conditions.