Zwitterionic polyethersulfone ultrafiltration membrane with superior antifouling property

摘要: A novel kind of zwitterionic polymer, tertiary amine-modified PES (TA-PES), bearing cationic amine groups and anionic sulfonic groups, was synthesized in this study. The as-synthesized TA-PES employed to fabricate ultrafiltration membranes by phase inversion a wet process using pure water or sodium chloride aqueous solution as coagulation bath. It found that the as-fabricated exhibited distinct ion-strength-dependent flux due inherent characteristics TA-PES. permeation can be varied dramatically simply changing ionic content Furthermore, displayed superior anti-protein-fouling property desirable performance.