Controlled Synthesis of Block Copolymers Containing Side Chain Thiophene Units and Their Use in Electrocopolymerization with Thiophene and Pyrrole

This paper reports on the synthesis of conducting polypyrrole and polythiophene grafted block copolymers of methylmethacrylate (MMA) and 3-methylthienylmethacrylate (MTM) by a multi-step process. For this purpose, block copolymers of MMA and MTM were prepared by controlled radical polymerization using 1,1-diphenylethene (DPE). Subsequently, polypyrrole and polythiophene sequences were grafted onto these block copolymers by constant potential electrolysis.