論文

査読有り
2011年8月

Synthesis and Fluorescent Properties of Model Compounds for Conjugated Polymer Containing Maleimide Units at the Main Chain

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Kenjiro Onimura
  • ,
  • Mieko Matsushima
  • ,
  • Munetoshi Nakamura
  • ,
  • Tatsuya Tominaga
  • ,
  • Kazuhiro Yamabuki
  • ,
  • Tsutomu Oishi

49
16
開始ページ
3550
終了ページ
3558
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/pola.24792
出版者・発行元
WILEY-BLACKWELL

2,3-Diaryl substituted maleimides as model compounds of conjugated maleimide polymers [poly(RMI-alt-Ar) and poly(RMI-co-Ar)] were synthesized from 2,3-dibromo-N-substituted maleimide (DBrRMI) [R= cyclohexyl (DBrCHMI) and n-hexyl (DBrHMI)] and aryl boronic acid using palladium catalysts. To clarify structures of conjugated polymer containing maleimide units at the main chain, (13)C NMR spectra of 2-aryl or 2,3-diaryl substituted maleimides were compared with those of N-substituted maleimide polymers. Copolymers obtained with DBrRMI via Suzuki-Miyaura cross-coupling polymerizations or Yamamoto coupling polymerizations were dehalogenated structures at the terminal end. This dehalogenation may contribute to the low polymerizability of DBrRMIs. On the other hand, the p-conjugated compounds showed high solubility in common organic solvents. The N-substituents of maleimide cannot significantly affect the photoluminescence spectra of 2,3-diaryl substituted maleimides derivatives. The fluorescence spectra of poly(RMI-alt-Ar) and poly(RMI-co-Ar) varied with N-substituents of the maleimide ring. When exposed to ultraviolet light of wavelength 352 nm, a series of 1,4-phenylene- and/or 2,5-thienylene-based copolymers containing N-substituted maleimide derivatives fluoresced in a yellow to blue color. It was found that photoluminescence emissions and electronic state of p-conjugated maleimide derivatives were controlled by aryl-and N-substituents, and maleimide sequences of copolymers. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 3550-3558, 2011

Web of Science ® 被引用回数 : 14

リンク情報
DOI
https://doi.org/10.1002/pola.24792
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000293845800010&DestApp=WOS_CPL

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