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Chitosan (CS)/polyvinylpyrrolidone (PVP)‐silica hybrid membranes are prepared to separate the methanol/ethylene glycol (EG) azeotrope. These hybrid membranes are formed in semi‐interpenetrating network structure at the molecular scale via sol‐gel reactions between CS and tetraethoxysilane (TEOS). The physico‐chemical property and morphology of the as‐prepared membranes are investigated in detail....
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