PELLEGRINO, J KANG, YS 2024-01-21T20:45:50Z 2024-01-21T20:45:50Z 2022-01-11 1995-02-28 0376-7388 https://pubs.kist.re.kr/handle/201004/145167 We measured CO2 and CH4 gas permeation through polyperfluorosulfonate ionomer (PFSI) that was solvated with water, methanol, ethanol, or 1-propanol. These measurements were compared with predictions based on a two-phase, effective-media, membrane model that considered a number of possible geometries for the distributed phase (the ionic clusters). The transport parameters (solubility and diffusivity) for each of the phases and the volume fraction of dispersed phase were either measured independently or estimated from prior literature data. We were unable to match all the experimental observations with this two-phase model. We conclude that different polar solvents can incorporate themselves into the flourocarbon 'continuous phase' in ways that will alter the effective diffusion coefficient of that phase to gas permeation. English ELSEVIER SCIENCE BV ION-EXCHANGE MEMBRANES FACILITATED TRANSPORT NAFION MEMBRANES LIQUID-MIXTURES SEPARATION COUNTERIONS FILMS CO2/CH4 TRANSPORT IN POLYPERFLUOROSULFONATE IONOMERS - EFFECTS OF POLAR-SOLVENTS ON PERMEATION AND SOLUBILITY Article 10.1016/0376-7388(94)00211-G 1 JOURNAL OF MEMBRANE SCIENCE, v.99, no.2, pp.163 - 174 JOURNAL OF MEMBRANE SCIENCE 99 2 163 174 scie scopus A1995QM53300006 Engineering, Chemical Polymer Science Engineering Polymer Science Article ION-EXCHANGE MEMBRANES FACILITATED TRANSPORT NAFION MEMBRANES LIQUID-MIXTURES SEPARATION COUNTERIONS FILMS ALCOHOLS CO2 CH4 POLYPERFLUOROSULFONATE IONOMER PERMEATION PFSI MODELING