Improvement of Antifouling and Antibacterial Properties of Poly(ether sulfone) UF Membrane by Blending with a Multifunctional Comb Copolymer

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• 作者：Xiaoli Zhan ; Guangfa Zhang ; Xi Chen ; Ren He ; Qinghua Zhang ; Fengqiu Chen
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：November 18, 2015
• 年：2015
• 卷：54
• 期：45
• 页码：11312-11318
• 全文大小：426K
• ISSN：1520-5045

文摘

Herein we report a novel PES UF membrane via blending with a multifunctional comb copolymer containing capsaicin analogue and hydrophilic groups. The copolymer P(H鈥揚鈥揂) was synthesized by a facile free radical polymerization method using poly(ethylene glycol) methyl ether methacrylate (PEGMA), 2-hydroxyethyl acrylate (HEA), and N-(4-hydroxy-3-methoxy benzyl) acrylamide (HMBA) as monomers. The resultant copolymer was then incorporated into PES to prepare PES blend membranes by the classic NIPS method. Specifically, the effects of the P(H鈥揚鈥揂) amount and different copolymer composition in the casting solutions on the structure and properties of the modified membranes were investigated in detail. The surface hydrophilicity and antifouling property of the membranes were remarkably improved, which was demonstrated by surface wettability measurement and BSA filtration experiments. Moreover, the modified membranes showed excellent antibacterial capability against Escherichia coli because of the capsaicin-analogue moieties of HMBA. We believe that P(H鈥揚鈥揂), an ideal hydrophilic antifouling and antibacterial agent, will bring many potential applications in membranes for water treatment.