Polymer Membrane as a Reaction Field IV. Separation of Water-Ethanol Mixture through Poly (methyl methacrylate-co-styrene) Membranes

抄録

Membrane polarity value, E_T (25 °C), was an effective index in order to prepare membrane materials for water-ethanol separation by pervaporation technique. Hydrophobic synthetic polymer membranes, poly (methyl methacrylate-co-styrene) membranes, having hydrogen-bonding site (ester group) as a fixed carrier, showed wide separation properties toward water-ethanol mixture. Separation properties changed from the water permeable membrane to the ethanol permeable one in accord with compositions of membrane materials, that is, chemical compositions of poly (methyl methacrylate-co-styrene).