An object of the present invention is to provide a polymer having a low LUMO, a high charge transport property, and further high solubility in a solvent. The present invention provides a polymer having a repeating unit represented by the formula (I):
wherein Ar0 means an aromatic ring that may have a substituent or substituents, or a heterocycle that may have a substituent or substituents, and X1 and X2 are the same or different and each mean an oxygen atom or a sulfur atom.
本发明的目的是提供一种具有低 LUMO、高电荷传输特性以及在溶剂中高溶解性的聚合物。本发明提供了一种具有由式(I)代表的重复单元的聚合物:
其中 Ar0 指可具有一个或多个取代基的芳香环,或可具有一个或多个取代基的杂环,X1 和 X2 相同或不同,且各指一个氧原子或一个
硫原子。