苯乙烯/马来酸酐糖基共聚物对PVDF膜的亲水化改性研究  

The hydrophilic modification of sugar copolymer based on styrene/maleimide to PVDF membrane

作　　者：李建华[1,2] 徐又一[1] 

机构地区：[1]浙江大学高分子科学与工程学系、高分子合成与功能构造教育部重点实验室,浙江杭州310027 [2]福州大学生物和医药技术研究院,福建福州350001

出　　处：《功能材料》2010年第9期1650-1654,共5页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2009CB623402);国家高技术研究发展计划(863计划)资助项目(2009AA062902);中央高校基本科研业务费专项资金资助项目(KYJD09011)

摘　　要：利用开环接枝聚合反应,在超高分子量苯乙烯/马来酸酐(SMA)交替共聚物中引入具有多羟基结构的生物相容性分子盐酸葡萄糖(GLA·HCl),生成糖基两亲性刷状共聚物(SMA-g-GLA),用1H NMR和GPC分别表征SMA-g-GLA的结构与分子量。以SMA-g-GLA为膜添加剂,通过浸没沉淀相转化法制备PVDF共混合金膜,纯水接触角测定结果表明,糖基化两亲性刷状共聚物的加入显著提高了膜的表面亲水性;BSA静态吸附实验研究表明,SMA-g-GLA膜添加剂有效地改善了PVDF膜的静态抗蛋白质污染性能。The D-glucoseamine was grafted to ultrahigh molecular weight poly（styrene-alt-maleic anhydride） via graft-to copolymerization method in solution. The structure and molecular weight of the resultant amphiphilic grafted copolymer SMA-g-GLA was characterized by 1H NMR and GPC respectively. The SMA-g-GLA was blend with PVDF to fabricate blend membranes by the standard immersion precipitation phase inversion process. The surface and cross-section morphology of pure PVDF and blend PVDF membranes were characterized by SEM. The surface hydrophilicity of pure PVDF and blend PVDF membranes were characterized by static water contact angle. The anti-fouling property was characterized by BSA static Absorb experiment.

关 键 词：超高分子量SMA 糖基两亲性刷状共聚物 共混合金膜 亲水性 

分 类 号：O636[理学—高分子化学] TQ028.8[理学—化学]