PVC-g-POEM graft copolymer was synthesized for ultrafiltration (UF) membrane area and the effect of TTIP on the membranes was also explored via phase separation. Characterization was explored by FT-IR, 1H-NMR and FE-SEM and measured by cross-flow system. The interaction between copolymer and TTIP enhanced the water permeance because of increased surface pore size and porosity. Phase inversion process in 80 oC water bath resulted in decreased water permeance owing to the increased top selective layer, but increased BSA rejection. However, TTIP-treated membrane with 80 oC inversion showed decreased BSA rejection owing to TTIP dissolution in hot water. TTIP treatment and 80 oC inversion resulted in highly enhanced antifouling property. The best performance exhibited 338 LMH water permeance, 89.4% BSA rejection, and 91.9% flux ratio recovery.

• 김종학(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Jong Hak Kim
• 박병주(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Byeong Ju Park
• 김진규(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Jin Kyu Kim
• 박민수(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Min Su Park