| 초록 |
Ultrafiltration membranes composed of polyethersulfone (PES) and aminated PES (PES-NH2) were fabricated using a non-solvent-induced phase separation process. To make m-phenylenediamine(MPDA) active layer on the Ultrafiltration membranes surface, the PES-COCl was synthesized by the reaction which occurs when PES-NH2 is immersed in trimesoyl chloride (TMC). After then m-phenylenediamine (MPDA) reacted with acyl chloride in the PES-COCl on the membrane surface. Aminated PES powder was detected by FT-IR(ATR) spectroscopy. And the formation of PES-COCl and reactions between PES-COCl and MPDA was confirmed using FT-IR, XPS, and FE-SEM analyses. Membranes composed of PES and PES-COCl exhibited salt rejection lower than 10% against MgSO4, while those fabricated by MPDA reaction to acyl chloride in the PES-COCl exhibited salt rejection higher than 50% against MgSO4. |
