Influence of solvent and non-solvent on polyimide asymmetric membranes formation in relation to gas permeation - Normandie Université Access content directly
Journal Articles Separation and Purification Technology Year : 2001

Influence of solvent and non-solvent on polyimide asymmetric membranes formation in relation to gas permeation

Abstract

Asymmetric 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA)-2-methyl-1, 3-phenylenediamine (mPDA) polyimide membranes were prepared by phase inversion process. Using different non-solvents and solvents, the correlation between membrane elaboration conditions and final morphology and properties has been investigated. Equilibrium thermodynamics and diffusion coefficients data were determined as a preliminary analysis in order to underline competitivity between thermodynamic and kinetic parameters. Scanning electron microscopy and gas permeation experiments (CO2, N2) were used for the determination of structure-permeability relationships. Sponge-like structure membranes and highest selectivity were obtained when using non-solvent/solvent/6FDA-mPDA systems having important coagulation time.

Dates and versions

hal-01869136 , version 1 (06-09-2018)

Identifiers

Cite

Nathalie Leblanc, Didier Le Cerf, Corinne Chappey, Dominique Langevin, Michel Métayer, et al.. Influence of solvent and non-solvent on polyimide asymmetric membranes formation in relation to gas permeation. Separation and Purification Technology, 2001, 22-23, pp.277-285. ⟨10.1016/S1383-5866(00)00129-5⟩. ⟨hal-01869136⟩
24 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More