期刊
CHINESE JOURNAL OF POLYMER SCIENCE
卷 36, 期 10, 页码 1157-1167出版社
SPRINGER
DOI: 10.1007/s10118-018-2144-5
关键词
Poly(ether imide); Surface modification; Anti-protein-fouling; Ultrafiltration; Poly(ethylene glycol)
资金
- Faculty of Science Research Fund [154009]
- Faculty of Science, Prince of Songkla University
- exchange program PHC SIAM in Thailand by the Thailand Ministry of Education [27543VL]
- Thailand Research Fund
- National Science and Technology Development Agency
- France by the Foreign Office
- France by the Ministry of Education and Research
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.
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