Enhancement of Resistance to Protein Fouling of Poly(ether imide) Membrane by Surface Grafting with PEG under Organic Solvent-free Condition  

作　　者：Pattama Phomdum Sana Gassara Andre Deratani Watchanida Chinpa 

机构地区：[1]Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90110, Thailand [2]Institut Europeen des Membranes, IEM UMR5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France

出　　处：《Chinese Journal of Polymer Science》2018年第10期1157-1167,共11页高分子科学（英文版）

基　　金：financially supported by Faculty of Science Research Fund(No.154009);Faculty of Science,Prince of Songkla University and the exchange program PHC SIAM(No.27543VL);funding in Thailand by the Thailand Ministry of Education,the Thailand Research Fund;the National Science and Technology Development Agency;the Foreign Office and the Ministry of Education and Research

摘　　要：Poly（ether imide） （PEI） membrane with enhanced antifouling property was successfully prepared in a mild and simple procedure. The virgin membrane was firstly functionalized with an aqueous solution of diamino-terminated poly（ethylene oxide） block copolymer （PEG-diamine）. Glutaraldehyde was used in a second step as a linker to chemically attach additional PEG-diamine to the primary amine groups grafted on PEI membrane surface. Immobilization of PEG segments was confirmed using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and atomic force microscopy. Ultrafiltration experiments revealed that the enhancement of a PEG coverage on the membrane surface provided superior anti-protein-fouling property. Cycles of protein filtration also demonstrated that the antifouling surface was stable over time and excellent ultrafiltration performance could be maintained without the need of harsh cleansing operation.Poly（ether imide） （PEI） membrane with enhanced antifouling property was successfully prepared in a mild and simple procedure. The virgin membrane was firstly functionalized with an aqueous solution of diamino-terminated poly（ethylene oxide） block copolymer （PEG-diamine）. Glutaraldehyde was used in a second step as a linker to chemically attach additional PEG-diamine to the primary amine groups grafted on PEI membrane surface. Immobilization of PEG segments was confirmed using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and atomic force microscopy. Ultrafiltration experiments revealed that the enhancement of a PEG coverage on the membrane surface provided superior anti-protein-fouling property. Cycles of protein filtration also demonstrated that the antifouling surface was stable over time and excellent ultrafiltration performance could be maintained without the need of harsh cleansing operation.

关 键 词：Poly（ether imide） Surface modification Anti-protein-fouling ULTRAFILTRATION Poly（ethylene glycol） 

分 类 号：TB383[一般工业技术—材料科学与工程]