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Homogeneous membranes based on sulfonated poly(ether ether ketone) (SPEEK) of different sulfonation degrees (SD) were tested for sorption and pervaporation dehydration of water/isopropanol mixtures in a wide range of feed composition. Coupled transport was observed in this pervaporation separation process, the permeation rate of isopropanol increases with the increase of water feed composition. A...
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