Preparation and characterization of antibacterial microporous membranes fabricated by poly(AMS-co-DMAEMA)grafted polypropylene via melt-stretching method  

作　　者：Shan Jiang Wei Wang Yonghong Ding Qiang Yu Li Yao 

机构地区：[1]School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovolatic Science and Engineering, Changzhou University [2]Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences

出　　处：《Chinese Chemical Letters》2018年第3期390-394,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos. 21778055 and 21573250)

摘　　要：Polypropylene microporous membranes are typical hydrophobic separation membranes, but the high hydrophobicity and lack of functionality easily cause bacterial adhesion, thus inducing membrane pollution. Poly（AMS-co-DMAEMA） （PAD） was designed and synthesized by copolymerization of a-methyl styrene （AMS） and functional monomer 2-（dimethylamino）ethyl methacrylate （DMAEMA）, and then grafted onto PP chains by melt blending. Microporous membranes of blended PP containing different contents of PAD are made by casting and stretching, and the polycation microporous membrane is then obtained via quaternization. The permeability and porosity of the microporous membrane achieve the best when the grafting efficiency reaches 42.16%, and the hydrophilicity of the microporous membrane is improved. The results show that the modified membranes fabricated in this method have good antibacterial properties.Polypropylene microporous membranes are typical hydrophobic separation membranes, but the high hydrophobicity and lack of functionality easily cause bacterial adhesion, thus inducing membrane pollution. Poly（AMS-co-DMAEMA） （PAD） was designed and synthesized by copolymerization of a-methyl styrene （AMS） and functional monomer 2-（dimethylamino）ethyl methacrylate （DMAEMA）, and then grafted onto PP chains by melt blending. Microporous membranes of blended PP containing different contents of PAD are made by casting and stretching, and the polycation microporous membrane is then obtained via quaternization. The permeability and porosity of the microporous membrane achieve the best when the grafting efficiency reaches 42.16%, and the hydrophilicity of the microporous membrane is improved. The results show that the modified membranes fabricated in this method have good antibacterial properties.

关 键 词：α-Methyl styrene 2-（Dimethylamino）ethyl methacrylate Hydrophilicity Polypropylene microporous membrane Antibacterial 

分 类 号：TQ051.893[化学工程]