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.
TheNehtyl 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.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
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
