壳聚糖及其衍生物溶液浇铸膜的结构研究  

Structure studies on solution casting film of chitosan and its derivatives

作　　者：董炎明[1] 李志强[1] 

机构地区：[1]厦门大学化学系

出　　处：《广州化学》1997年第4期24-29,共6页Guangzhou Chemistry

基　　金：中国科学院广州化学所纤维素化学开放研究实验室资助

摘　　要：用偏光显微镜小角光散射、扫描电镜和大角度X-光衍射技术研究了壳聚糖及其衍生物丁酸壳聚糖、苯甲酸壳聚糖的溶液浇铸膜的结构。用低于液晶临界浓度的稀溶液能制备具有液晶织构的膜。观察到指纹状织构、正光性滴状织构和负光性滴状织构．后两种滴状织构内分子自组织构型分别为辐射型和双极型。The structure of solution casting films of chitosan and its derivatives was researched using PM, SALS, SEM and WAXD. Films with liquid crystalline texture can be prepared from diluted solutions which concentration was lower than critical contration of liquid crystal. The fingerprint texture and droplet texture both with positive and negative birefringence were observed. The director configurations of latter two textures were radial and bipolar respectively.

关 键 词：壳聚糖 丁酸 苯甲酸 溶液浇铸膜 液晶织构 

分 类 号：O636.9[理学—高分子化学] O753.2[理学—化学]