PLA/液晶复合膜的制备及其性能研究  

Study on Perparation and Property of PLA/Liquid Crystal Composite Membranes

作　　者：丁珊[1] 李立华[1] 邓政兴[1] 周长忍[1] 

机构地区：[1]暨南大学化学系生物材料研究室,广州510632

出　　处：《生物医学工程学杂志》2002年第3期383-385,共3页Journal of Biomedical Engineering

基　　金："973"项目资助课题 ( G19990 5 430 6 )

摘　　要：利用本实验室合成的两种新型的亲水性液晶化合物与聚乳酸在一定的条件下制备了具有抗凝血性能的复合材料。通过接触角的测试、动态凝血实验、溶血实验发现液晶化合物能改善聚乳酸的抗凝血性能。研究结果发现 ,随着液晶化合物在复合材料中的含量的增加 ,接触角明显减少 ;且发现液晶在 30 %～ 40In this paper we synthesised two kinds of hydrophilic liquid crystal, ie.cholesteryl triethenyl glycol carbonate (TCC), cholesteryl tetraethenyl glycol carbonate (TeCC), which were blended with PLA with certain contents to form composite membranes. Contact angle test showed that the contact angle decreases with the increase of liquid crystal. The blood-compatibility of the composite membranes was assessed by blood clotting time and hemolysis ratio which showed that these PLA/liquid crystal composite membranes with the content of 30%～40% liquid crystal appeared to be beneficial in improving the blood compatibility and anticoagulation.

关 键 词：聚乳酸 亲水性液晶 复合膜 血液相容性 功能膜 生物医学工程 

分 类 号：R318.08[医药卫生—生物医学工程]