乳酸-赖氨酸/壳聚糖自组膜的制备  

Preparation of PLA-LYS/Chitosan Self-Assembling Membrane

作　　者：麻金海[1] 刘万顺[1] 

机构地区：[1]中国海洋大学海洋生命学院海洋生物系

出　　处：《中国海洋大学学报（自然科学版）》2007年第3期449-452,共4页Periodical of Ocean University of China

基　　金：国家高技术研究发展规划项目(2003AA625050);国家自然科学基金项目(30070220)资助

摘　　要：由乳酸-赖氨酸(PLA-LYS,mLA/mLYS=22/1)星型共聚物与壳聚糖(CS)通过分子间作用自组装成自组膜。利用傅立叶变换红外光谱(FT-IR)和扫描电子显微镜(SEM)对膜的表面结构进行了表征,同时测定了自组膜的溶胀度。发现2种分子间存在强的氢键作用并有较好的相容性,PLA-LYS与CS比例为1:1得到的自组膜,具有稳定性高和溶胀度低的特点。Supramolecular membrane made by hydrogen bonds between PLA-LYS （mLA/mLYS = 22/1 ） star-shaped copolymer and chitosan was studied. The surfaces of the membranes were characterized by FT-IR and SEM methods; at the same time the swelling ratios of the membranes were determined. There are strong hydrogen bonds between the PLA-LYS and chitosan molecules, and they are highly compatible. The membrane （1/1） has a lower swelling ratio.

关 键 词：乳酸-赖氨酸 壳聚糖 氢键 自组装 膜 溶胀度 

分 类 号：R318.08[医药卫生—生物医学工程]