期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 34, 页码 11893-11902出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201904966
关键词
direct arylation polycondensation; electron transport; isomers; organic semiconductors; structure-property relationships
资金
- JSPS KAKENHI [18KK0157, 19H02786]
- Ogasawara Foundation for the Promotion of Science and Engineering
- Yazaki Memorial Foundation for Science and Technology
- Asahi Glass Foundation
- Tateisi Science and Technology Foundation
- International Polyurethane Technology Foundation
- Support for Tokyotech Advanced Researchers
- Grants-in-Aid for Scientific Research [18KK0157, 19H02786] Funding Source: KAKEN
The direct arylation polycondensation (DArP) appeared as an efficient method for producing semiconducting polymers but often requires acceptor monomers with orienting or activating groups for the reactive carbon-hydrogen (C-H) bonds, which limits the choice of acceptor units. In this study, we describe a DArP for producing high-molecular-weight all-acceptor polymers composed of the acceptor monomers without any orienting or activating groups via a modified method using Pd/Cu co-catalysts. We thus obtained two isomeric all-acceptor polymers, P1 and P2, which have the same backbone and side-chains but different positions of the nitrogen atoms in the thiazole units. This subtle change significantly influences their optoelectronic, molecular packing, and charge-transport properties. P2 with a greater backbone torsion has favorable edge-on orientations and a high electron mobility mu(e) of 2.55 cm(2) V-1 s(-1). Moreover, P2-based transistors show an excellent shelf-storage stability in air even after the storage for 1 month.
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