Efficient synthesis of block copolymers bearing donor-acceptor chromophores for second-order nonlinear optical applications

Yongrong Li, Kazuma Tsuboi, Tsuyoshi Michinobu, Yoshihito Ishida, Tomoyasu Hirai, Teruaki Hayakawa, Masa Aki Kakimoto

研究成果: ジャーナルへの寄稿学術誌査読

14 被引用数 (Scopus)

抄録

Block copolymers composed of unsubstituted polystyrene and electron-rich alkyne functionalized polystyrene segments were prepared by atom transfer radical polymerization (ATRP) of N,N-didodecyl-4-[(4-vinylphenyl)ethynyl]aniline (2) with bromine-terminated polystyrene (1). Subsequently, the atom-economic addition reaction between electron-rich alkynes and tetracyanoethylene (TCNE) was applied as an efficient post-functionalizalion method to introduce donor-acceptor chromophores. All polymers were comprehensively characterized by GPC, 1H NMR, 1R and UV-Vis spectroscopies, and electrochemistry. The TCNE-adducted polymers showed intense charge-transfer (CT) bands, well-defined redox activities, and good thermal stability. Furthermore, the second harmonic generation (SHG) of the spin-coated polymer thin films on a glass slide was measured before and after electric poling, and the SHG coefficient (d33) of the poled thin film reached 3.0 pm V-1.

本文言語英語
ページ(範囲)337-342
ページ数6
ジャーナルJournal of Photopolymer Science and Technology
23
3
DOI
出版ステータス出版済み - 2010
外部発表はい

!!!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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