NOVEL COPOLYMERS WITH CYANO GROUPS IN VINYLENE UNITS

摘要

PURPOSE: An organic polymer is provided to enable the production of an organic polymer thin film solar cell on a flexible plastic board since the organic polymer is well molten in an organic solvent and a normal-temperature spin coating is enabled. CONSTITUTION: A copolymer is represented by chemical formula 1. In chemical formula 1, a functional group of chemical formula 1-D is represented by chemical formula 2 or chemical formula 3. In chemical formula 2 and 3, R1 and R2 are respectively C1-20 linear or branched alkyl group. The copolymer has number average molecular weight of 4,000-10,000 and an average molecular weight is 5,000-150,000.