N-乙基壳聚糖的单晶  

Single Crystals of N-ethyl Chitosan

作　　者：董炎明[1] 入江聪[2] 吴玉松[1] 周雪松 阮永红[1] 赵雅青[1] 王惠武[1] 

机构地区：[1]厦门大学材料科学系,福建厦门361005 [2]日本福井大学工学院材料开发工学科 [3]中国科学研究院广州化学研究所,广东广州510650

出　　处：《厦门大学学报（自然科学版）》2003年第3期390-392,共3页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(29974023)资助

摘　　要：用光固化法制备N 乙基壳聚糖/聚丙烯酸复合膜.在复合膜中观察到单晶和悬挂着单晶片的微纤.单晶的长和宽约为300～400nm,比常见的晶粒尺寸小得多.与通常单晶的极稀溶液制备条件不同,该单晶是在复合膜中形成的.水的诱导结晶作用和体系的高浓度形成了一种几乎是无限缓慢的结晶条件,单晶正是由于这样条件才能得以形成.TheNehtyl chitosan/polyacrylic acid composite films were prepared by means of photopolymerization. The single crystals and microfibrils were observed in these composite films. Both the length and width of single crystal were about 300～400 nm, which were smaller than those of the usual crystallites. As contrasted with the formation condition of normal single crystals (i.e. in very dilute solution), the single crystals in this article were prepared in composite films. Both the water induction crystallization and high concentration of system produced a nearly infinite slow crystallization rate. The single crystals were just formed under these conditions.

关 键 词：N-乙基壳聚糖 单晶 光固化法 诱导结晶 结晶条件 结晶形态 

分 类 号：O636.1[理学—高分子化学]