A donor–acceptor conjugated block copolymer of poly(arylenevinylene)s by ring-opening metathesis polymerization

Novel conjugated cyclophanes comprising electron donating cyclopentadithiophene-vinylene and accepting dithienobenzothiadiazole-vinylene have been synthesized by McMurry coupling. Ring-opening metathesis polymerization (ROMP) of the acceptor monomer and the subsequent addition of the donor monomer allows the preparation of a fully conjugated diblock copolymer. The diblock copolymer exhibits multiple optical and electrochemical functions.