Preparation of poly(etherimide) based ultrafiltration membrane with low fouling property by surface modification with poly(ethylene glycol)

▶ Amination reaction using Jeffamine® M-2070 leads to PEGylation of poly(etherimide). ▶ PEG grafting of membrane is effective in environmentally friendly condition. ▶ Modification of membrane surface improves resistance to protein fouling. ▶ Over reaction leads to polymer chain degradation and morphology alteration.