Nanofiltration Membranes Based on Rigid Star Amphiphiles

Rigid star amphiphiles (RSAs) of nanoscale dimension were synthesized and used to fabricate a new generation of nanofiltration (NF) membranes. NF membranes were prepared by direct percolation of methanol solutions of the RSAs through an asymmetric polyethersulfone (PES) support film that had been previously conditioned with methanol and cross-linked polyvinyl alcohol (PES-MeOH-PVA support). The resulting RSA membranes (RSAMs) have been shown to...