Polythiophene-block-poly(phenyl isocyanide) copolymers: One-pot synthesis,properties and applications

Conjugated block copolymers have gained increasing interests in recent years.Development of a novel method for facile synthesis of conjugated block copolymers with desired structures and functions is greatly desired.In this mini review,we summarized the recent advances in one-pot synthesis of conjugated block copolymers containing π-conjugated polythiophene and helical polyisocyanide segments by using a nickel(Ⅱ) complex as single catalyst.The sequential living polymerization of the two monomers proceeded in a controlled manner,affording expected block copolymers in high yields with controlled molecular weights (Mns) and narrow molecular weight distributions (Mw/Mns).By using this method,a family of block copolymers with expected structure and tunable compositions can be facilely prepared.Introducing functional groups onto the pendant,these block copolymers can exhibit interesting self-assembly property,tunable light emission and multi-responsiveness.