偶氮苯聚合物的光致异构与分子链段的取向效应  

THE EFFECTS OF LIGHT INDUCED ISOMERIZATION AND MOLECULAR CHAIN ORIENTATION IN AZOBENZENE POLYMERS

作　　者：谢仲辉[1] 黄淳[1] 黄新邦[1] 陈颖宇 文锦辉[1] 邹永德[1] 林位株[1] 张灵志[2] 梁兆熙[2] 

机构地区：[1]中山大学超快速激光光谱学国家重点实验室 [2]中山大学高分子研究所

出　　处：《光子学报》1998年第8期699-703,共5页Acta Photonica Sinica

基　　金：国家自然科学基金

摘　　要：本文通过实验和计算机模拟对偶氮苯聚合物光致双折射的写入、弛豫、擦写特性进行研究并对光致双折射的产生机制提出了一个新模型指出对光致双折射有贡献的不仅是光致异构，分子链段的取向也有贡献。Writing,relaxation and erasing processes in azobenzene polymers have been studied experimentally and theoretically.A new model of mechanism of photoinduced birefringence is presented.It is suggested that light induced isomerization and molecular chain orientation lead to the fast and slow processes of the photoinduced birefringence,respectively.

关 键 词：偶氮苯聚合物 光致异构 分子链 取向效应 

分 类 号：O631.24[理学—高分子化学]