Crosslinked poly(vinyl alcohol) membranes

The high swelling behaviour can be countered also by forming the active PVA component inside the pores of a microporous membrane. Crosslinked PVA inside such membranes has its swelling suppressed, and can function as salt removal membranes. By only coating the pore walls, leaving some porosity, microfiltration or ultrafiltration membranes can be prepared. In both situations a degree of grafting to the host membrane would be beneficial.