Thermodynamic-based predictions of membrane morphology in water/dimethylsulfoxide/polyethersulfone systems

摘要: Abstract In this paper, ternary phase diagram was used to predict morphology of the membranes prepared via inversion process. Theoretical diagrams were calculated based on a compressible regular solution (CRS) model for water/dimethylsulfoxide/polyethersulfone membrane forming system. The CRS is an alternative traditional Flory–Huggins theory. experimental cloud point data determined using titration method. constructed theoretical consistent with results. precipitation rate polymeric in non-solvent obtained by light transmission experiments. predicted and separation kinetics. To verify prediction, scattering experiments performed.