Elaboration of porous PVA membrane by TIPS-LCST process without using organic solvent

摘要

Porous polymeric membranes are classically made by phase inversion processes: non-solvent induced phase separation process (NIPS), dry casting process or UCST-TIPS process (reduction of temperature under the critical solution temperature) [1]. Nowadays, all these elaboration processes involve a large quantity of organic and often toxic solvents needed for the initial dissolution of the polymer. This implies to proceed cautiously to avoid pollution (spoiling, accidental contamination or evaporation losses) and to restrict environmental and public health impacts.