摘要
设计合成了4种未见文献报道的系列新型含紫精单元的聚合物液晶,用现代测试手段进行了结构表征及重均相对分子质量的测定。并以紫外分光光度计研究这些紫精聚合物的光还原行为,结果表明其光还原为二级反应,光还原速率与紫精聚合物重均相对分子质量、异丙醇给电子体等因素有关。
A series of novel polymer liquid crystal containing viologen units was synthesized and characterized. In the presence of excess 2-propanol, the photoreduction behavior of viologen polymers was investigated by using UV-visible spectra, the results showed that the photoreduction of these polyviologens followed the second-order reaction law, the calculated rate constants were related to their weight average molecular weights. The effect of 2-propanol was also observed.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第1期51-55,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省自然科学基金资助项目(001249
980346)
关键词
紫精聚合物
光响应聚合物液晶
光还原
光致变色
viologen polymer
photoresponsive liquid crystal
photoreduction
photochromism
