In‐Situ End‐Group Functionalization of Regioregular Poly(3‐alkylthiophene) Using the Grignard Metathesis Polymerization Method

A facile one‐step synthetic method to functionalize regioregular polythiophene is described (see Figure). End‐group functionalization leads to a number of new uses for these polymers including end‐group‐driven self‐assembly onto surfaces and into conducting polymer networks, and their use as building blocks for the synthesis of block copolymers.