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Study of reverse osmosis separation and permeation rate for sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) membranes of different ion exchange capacities

✍ Scribed by Ali Hamza; Geeta Chowdhury; T. Matsuura; S. Sourirajan

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 835 KB
Volume: 58
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1995.070580316

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✦ Synopsis

The reverse osmosis performance of thin-film composite membranes prepared from sulfonated polyphenylene oxide polymer with different ion-exchange capacities was studied using various electrolyte solutes. The effect of the solvent used for the preparation of the polymer solution for surface coating was also studied. It was found that the preparation of thin-film composite membranes with high selectivities and high fluxes was possible by adjusting properly the ion-exchange capacity and the solvent. It was also found that the membrane performance was governed primarily by the ion-exchange reaction between the solute cation and the proton in SO,H and the Donnan equilibrium.

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