基于超高分子量聚(苯乙烯-马来酸酐)的微-纳杂化表面的构造  

Fabrication of maco-nano hierarchical structure hybrid surfaces based on ultrahigh molecular poly (styrene-alt-maleic)

作　　者：王建华[1,2] 朱宝库[1,2] 朱利平[1,2] 徐又一[1,2] 

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,杭州310027 [2]浙江大学膜与水处理技术教育部工程研究中心,杭州310027

出　　处：《功能材料》2014年第5期5041-5044,共4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);国家自然科学基金资助项目(20974094);浙江省博士后优先资助项目(Bsh1202045)

摘　　要：在超临界CO2中合成了具有交替结构的超高分子量聚(苯乙烯-马来酸酐)共聚物,与PVDF进行共混通过相互法制备复合膜,最后在γ-氨丙基三乙氧基硅烷(APTS)溶液中对共混膜进行改性。采用SEM、FT-IR-ATR接触角分别对膜表面形貌、化学组成和润湿特性进行表征,结果表明,采用THF为APTS溶剂时,膜表面含有大量的亲水基团,并具有明显的微-纳结构,水接触角<10°,润湿特性表现为超亲水性。而采用乙醇为溶剂时,虽然具有微-纳结构,但由于表面亲水基团比较少,润湿特性表现为强的疏水特性,水接触角为(111±2)°。A micro-nano hierarchical structure hybrid surface was fabricated based on a ultrahigh molecular weight poly（styrene-alt-maleic anhydride）（UHMWSMA）.The UHMWSMA was synthesized in supercritical carbon dioxide fluid.The UHMWSMA/poly（vinylidene fluoride）（PVDF）blend membranes were prepared by phase inversion process.The hybrid surface was fabricated after modified by γ-aminopropyltriethoxysilane （APTS）.The compatibility between UHMWSMA and PVDF were investigated by XRD and DSC.It demon-strates that the blend had better compatibility and the phase separation was prohibited during membrane prepa-ration.The hybrid surfaces morphologies and hydrophilicity were investigated.It was found that the hybrid lay-er was porous and micro-nano hierarchical structure and superhydrophilic.

关 键 词：微-纳结构 杂化 超高分子量聚(苯乙烯-马来酸酐) PVDF 

分 类 号：O636[理学—高分子化学] TQ028.8[理学—化学]