Development of Site-Selective Direct Arylation Polycondensation

2015 Fiscal Year Final Research Report

• Project/Area Number: 25288052
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Polymer chemistry
• Research Institution: University of Tsukuba
• Principal Investigator: Kanbara Takaki 筑波大学, 数理物質系, 教授 (90204809)
• Co-Investigator(Renkei-kenkyūsha): KUWABARA Junpei 筑波大学, 数理物質系, 講師 (70466655)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 高分子半導体 / 導電性高分子 / 直接的アリール化反応 / 結合位置 / 反応制御 / 配向基

Outline of Final Research Achievements

Polycondensation via direct arylation of C-H bond in aromatic monomers afforded the corresponding conjugated polymers. However, the C-H functionalization sometimes occurs at undesired positions of the aromatic monomers, which affords the irregular structure in the polymer chains. To suppress the undesired side reactions, we focused on development of site-selective direct arylation polycondensation. The introduction of directing group into the aromatic monomer was effective for ortho-selective C-H bond functionalization and gave well-defined conjugated polymers. On the other hand, we examined the relationship between the reaction conditions and the nature of thiophene monomers; the optimal reaction conditions were applicable to site-selective direct arylation polycondensation and afforded well-defined conjugated polymers.

Free Research Field

高分子化学