申请人:Kuraray Co., Ltd.
公开号:EP2706077A1
公开(公告)日:2014-03-12
Provided is a conjugated block copolymer that is capable of morphology control and that can achieve superior conversion efficiency. A π-electron conjugated block copolymer contiguously or non-contiguously bonding polymer block (A) involving a monomer unit having in a portion of a chemical structure at least one heteroaryl skeleton selected from a thiophene, a fluorine, a carbazole, a dibenzosilole and a dibenzogermole; and a polymer block (B) involving a monomer unit similarly having at least one heteroaryl skeleton; wherein the polymer block (A) comprises a homopolymer block of a monomer unit having a substituent RnA that is an alkoxy group or an alkyl group having 1 - 18 carbon atoms, and the polymer block (B) comprises a copolymer block of at least two different from each other types of monomer units having substituent RnB selected from an alkoxy group or an alkyl group having 1 - 18 carbon atoms, which may be substituted with an alkoxy group, a halogen atom, a hydroxyl group, an amino group, a thiole group, a silyl group, an ester group, an aryl group, hetero aryl group.
本发明提供了一种共轭嵌段共聚物,该共聚物能够进行形态控制,并能实现优异的转换效率。一种π-电子共轭嵌段共聚物毗连或非毗连键合聚合物嵌段(A),涉及在部分化学结构中具有至少一个杂芳基骨架的单体单元,该杂芳基骨架选自噻吩、氟、咔唑、二苯并硅唑和二苯并锗;以及涉及同样具有至少一个杂芳基骨架的单体单元的聚合物嵌段(B);其中聚合物嵌段(A)包括具有取代基 RnA 的单体单元的均聚物嵌段,取代基 RnA 为烷氧基或具有 1-18 个碳原子的烷基,聚合物嵌段(B)包括至少两种不同类型的单体单元的共聚物嵌段,取代基 RnB 选自烷氧基或具有 1-18 个碳原子的烷基、可被烷氧基、卤素原子、羟基、氨基、巯基、硅基、酯基、芳基、杂芳基取代。