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Sulfonated cation exchange membranes have been prepared by the postradiation graft polymerization of styrene on a 20-μm-thick low-density polyethylene film and the subsequent sulfonation of the grafted polystyrene. The distribution of sulfonated polystyrene in the membranes at varying degree of grafting has been described using IR spectroscopy data. It has been shown that the permeability of the membranes...
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