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《高分子科学(英文版)》 2018-10
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Enhancement of Resistance to Protein Fouling of Poly(ether imide) Membrane by Surface Grafting with PEG under Organic Solvent-free Condition

Pattama Phomdum;Sana Gassara;André Deratani;Watchanida Chinpa;Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University;Institut Européen des Membranes;  
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.
【Fund】: 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
【CateGory Index】: TB383
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