4.5 Article

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

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

  1. Faculty of Science Research Fund [154009]
  2. Faculty of Science, Prince of Songkla University
  3. exchange program PHC SIAM in Thailand by the Thailand Ministry of Education [27543VL]
  4. Thailand Research Fund
  5. National Science and Technology Development Agency
  6. France by the Foreign Office
  7. France by the Ministry of Education and Research

向作者/读者索取更多资源

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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