An enhanced host-guest electro-optical polymer system using poly(norbornene-dicarboximides) via ROMP

Feng Yu, Andrew M. Spring, Lu Li, Feng Qiu, Kazuhiro Yamamoto, Daisuke Maeda, Masaaki Ozawa, Keisuke Odoi, Shiyoshi Yokoyama

研究成果: Contribution to journalArticle査読

19 被引用数 (Scopus)

抄録

High glass transition temperature poly(N-cyclohexyl-5-norbornene-2,3- dicarboximide)s (NDI)s prepared by ring opening metathesis polymerization yielded polymers with a narrow polydispersity and well-controlled molecular weight materials when using the Grubbs first generation initiator. Polymers produced using the Grubbs second generation initiator could not be controlled easily. By initiator selection it was also possible to synthesize polymers with either 98 or 52% trans microstructures. These materials were employed as electro-optic (EO) polymer hosts for high molecular hyperpolarizability (β) phenyl vinylene thiophene vinylene bridge chromophores. This chromophore was modified by the incorporation of a tert-butyldiphenylsilane group. The addition was able to further increase its EO coefficient (r33) to reach 93 pm/V in a trans rich poly(NDI) produced by the Grubbs first generation initiator, compared to a benchmark chromophore / polymer combination. We investigated in detail the relationship between polymer microstructure and their absolute molecular weight on forming the best host-guest with the high β chromophore. Our results indicate that by utilizing a very simple host-guest system a high r33 can be realized.

本文言語英語
ページ(範囲)1278-1284
ページ数7
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
51
6
DOI
出版ステータス出版済み - 3 15 2013

All Science Journal Classification (ASJC) codes

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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