含氨酯基的壳聚糖衍生物的胆甾液晶螺旋性质  

Helicoidal Properties of Cholesteric Liquid Crystalline for Urethane Derivatives of Chitosan

作　　者：董炎明[1] 吴玉松[1] 阮永红[1] 赵雅青[1] 王惠武[1] 

机构地区：[1]厦门大学材料科学与工程系,福建厦门361005

出　　处：《吉首大学学报（自然科学版）》2002年第4期26-29,共4页Journal of Jishou University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(29974023)

摘　　要：用圆偏振光二向色性谱法研究了3种含氨酯基的壳聚糖衍生物的胆甾液晶螺旋性质.结果表明,3种衍生物的质量分数为65%的氯仿溶液都呈现胆甾液晶相.此外,CD谱观察结果显示侧基结构对其胆甾螺旋方向有明显的影响.The helicoidal properties of three urethane derivatives of chitosan in cholesteric liquid crystalline phase were studied by means of circular dichroism spectroscopy.The 65% chloroform solutions of all three derivatives demonstrated cholesteric liquid crystalline phase.A strong influence of the substituent on the twist sense was investigated.

关 键 词：氨酯基 胆甾液晶 螺旋性质 壳聚糖衍生物 螺旋结构 圆偏光二向色性谱法 光学性质 

分 类 号：O636.1[理学—高分子化学]