Résumé
Deep eutectic solvents (DES) have recently emerged as a new class of inexpensive biodegradable solvents andadditives with diverse applications. In this study, a new family of non-ionic deep eutectic solvents (NIDES) isproposed for the first time for membrane preparation. Three types of NIDES, N-methylacetamide-acetamide(DES-1), N-methyl acetamide-N-methyl urea (DES-2), and N-methyl acetamide-N,N′ -dimethyl urea (DES-3) weresynthesized and used to dissolve polyvinylidene fluoride (PVDF) polymer. The effects of the additive polyvinylpyrrolidone(PVP) and the type of NIDES on the PVDF membrane characteristics, water permeability andbovine serum albumin (BSA) separation were studied. The membranes prepared with DES-1 and 2 wt% PVPexhibited a good water permeate flux (96.82 L/m2.h) and a high BSA separation factor (96.32%). High performancePVDF membranes can thus be efficiently prepared using biodegradable inexpensive NIDES.