高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (3): 559.

• 研究快报 • 上一篇    下一篇

一种新型联萘基旋光共轭聚合物的圆二色谱和圆偏振荧光光谱

卞证, 何亚兵, 高连勋   

  1. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022
  • 收稿日期:2002-09-04 出版日期:2003-03-24 发布日期:2003-03-24
  • 通讯作者: 高连勋(1956年出生),男,博士,研究员,博士生导师,从事手性化合物和聚酰亚胺的合成及应用研究.E-mail:lxgao@ciac.j.lcn E-mail:lxgao@ciac.j.lcn
  • 基金资助:

    国家自然科学基金(批准号:59473010)资助

Circular Dichroism and Circularly Polarized Photoluminescence Spectra of a New Chiral Conjugated Polymers Based-on 1,1’-Binaphthyl Structure

BIAN Zheng, HE Ya-Bing, GAO Lian-Xun   

  1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2002-09-04 Online:2003-03-24 Published:2003-03-24

关键词: 主链旋光共轭聚合物, 圆二色谱, 圆偏振荧光

Abstract: A new chiral conjugated polymer was synthesized by the Wittig-Horner polymerization of optically active binaphthyl monomer at the 3,3-positions. The circular dichroism spectrum of the polymer shows that the degree of circular polarization in absorption, g_ abs, is 1.9×10-3 in chloroform at room temperature. The circularly polarized photoluminescence spectrum of the polymer shows that the degree of circular polarization in emission, glum, is -1.6×10-3 in chloroform at room temperature. As the polymer is readily soluble in chloroform, the results indicate that the circular polarization in absorption and emission is originated from molecularly dissolved chains and is due to exciton coupling between chain segments of the same polymer molecule. The results also show that the polymer could emit partially circularly polarized light when irradiated in chloroform at room temperature.

Key words: Conjugated polymer with main chain chirality, Circular dichroism spectrum, Circularly polarized photoluminescence

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