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Journal articles
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.
https://hal-normandie-univ.archives-ouvertes.fr/hal-01869136
Contributor : Didier Le Cerf <>
Submitted on : Thursday, September 6, 2018 - 11:53:06 AM
Last modification on : Wednesday, December 4, 2019 - 11:18:05 AM
Contributor : Didier Le Cerf <>
Submitted on : Thursday, September 6, 2018 - 11:53:06 AM
Last modification on : Wednesday, December 4, 2019 - 11:18:05 AM
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