Microwave‐assisted polycondensation of 4‐octylaniline with dibromoarylene |
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| Authors: | Naoto Takase Junpei Kuwabara Seong Jib Choi Takeshi Yasuda Liyuan Han Takaki Kanbara |
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| Affiliation: | 1. Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Graduate School of Pure and Applied Sciences, University of Tsukuba, 1‐1‐1 Tennodai, Tsukuba, Ibaraki, Japan;2. Organic Thin‐Film Solar Cells Group, Photovoltaic Materials Unit, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan |
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| Abstract: | The Pd‐catalyzed polycondensation of 4‐octylaniline with various dibromoarylenes was carried out under microwave heating. Microwave heating led to a decrease in the reaction time and an increase in the molecular weight of the polymers as compared to conventional heating. Microwave heating also allowed the catalyst loading to be reduced to 1 mol %, yielding polymerization results that were comparable to those under conventional heating and 5 mol % catalyst. Investigations regarding field‐effect transistors and organic photovoltaic cells using the obtained poly(arylamine) with azobenzene units revealed that increasing the molecular weight of the polymer led to improved device performance, including hole mobility and power conversion efficiency. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015 , 53, 536–542 |
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| Keywords: | conjugated polymers microwave heating organic field‐effect transistor organic photovoltaic cells organometallic catalysis polycondensation poly(arylamine) |
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