Tuning the molecular structure, separation performance and interfacial properties of poly(vinyl alcohol)-polysulfone interfacial composite membranes

▶ Ultra-thin and defect-free poly(vinyl alcohol) nanofiltration membranes. ▶ Simulation and control of cross-linked poly(vinyl alcohol) film structure. ▶ Permeability strongly correlates with nature and extent of cross-linking. ▶ Polymer free volume strongly correlates with nanofiltration membrane permeability.