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  

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

作　　者：卞证[1] 何亚兵[1] 高连勋[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《高等学校化学学报》2003年第3期559-561,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 94730 10 )资助

摘　　要：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, g_ lum, 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.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, g_ lum, 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.

关 键 词：联萘基旋光共轭聚合物 圆二色谱 圆偏振荧光光谱 光电性质 

分 类 号：O632.7[理学—高分子化学] O631.2[理学—化学]