| 新型含紫精单元的聚合物液晶的合成与光还原行为 |
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| 引用本文： | 牛永平,张灵志,李红山,梁兆熙.新型含紫精单元的聚合物液晶的合成与光还原行为[J].中山大学学报(自然科学版),2004,43(1):51-55. |
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| 作者姓名： | 牛永平 张灵志 李红山 梁兆熙 |
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| 作者单位： | 1. 中山大学化学与化学工程学院,广东,广州,510275
2. 嘉应大学化学系,广东,梅州,514015 |
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| 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.
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| 关 键 词： | 紫精聚合物 光响应聚合物液晶 光还原 光致变色 |
| 文章编号： | 0529-6579(2004)01-0051-05 |
| 修稿时间： | 2003年3月20日 |
Synthesis and Photoreduction Behavior of Novel Polymer Liquid Crystals Containing Viologen Units |
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| NIU Yong-ping,ZHANG Ling-zhi,LI Hong-shan,LIANG Zhao-xi.Synthesis and Photoreduction Behavior of Novel Polymer Liquid Crystals Containing Viologen Units[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2004,43(1):51-55. |
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| Authors: | NIU Yong-ping ZHANG Ling-zhi LI Hong-shan LIANG Zhao-xi |
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| Abstract: | 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. |
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| Keywords: | viologen polymer photoresponsive liquid crystal photoreduction photochromism |
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