Patent ID: 8653227
Filing Date: 2014-02-18
Classification: C08G,H01B,H01L

Abstract:
1. A process for preparing a regioregular homopolymer or copolymer of a 3-substituted thiophene, a 3-substituted selenophene, a 3-substituted thiazol, or a 3-substituted selenazol, the process comprising: a) reacting a 3-substituted 2,5-dihalothiophene, a 3-substituted 2,5-dihaloselenophene, a 3-substituted 2,5-dihalothiazol, or a 3-substituted 2,5-dihaloselenazol with at least one selected from the group consisting of reactive zinc metal, magnesium metal, and an organomagnesium halide, to obtain an organozinc or organomagnesium intermediate comprising a halozinc or a halomagnesium group; b) contacting the organozinc or the organomagnesium intermediate with a Ni(II), a Ni(0), a Pd(II), or a Pd(0) catalyst; and c) polymerizing the organozinc or the organomagnesium intermediate, to obtain a regioregular head-to-tail homopolymer or copolymer of a 3-substituted thiophene, a 3-substituted selenophene, a 3-substituted thiazol, or a 3-substituted selenazol, wherein: the polymerizing occurs at a temperature rising from a lower temperature T T T T an average rate of increase (T