Asymmetric PEEKWC membranes for treatment of organic solvent solutions

▶ PEEKWC membranes have been prepared for SRNF, with high retention of organic molecules solutions. ▶ Integrally skinned PEEKWC membranes have been obtained similar in gas flux and transports properties to Desal 5 DK. ▶ The modest membrane compaction observed is reversible. ▶ The rejection of Rose Bengal (MW 1017 g/mol) is complete in i-propanol (99.8%), higher than that observed in water (86%).