State of Water in Soybean Polysaccharide Membranes and Their Pervaporation Performance
Self-standing durable membranes were obtained from a renewable polymer, soybean polysaccharide, by the introduction of crosslinking. Differential scanning calorimetric melting endotherms of the water-swollen membranes were studied to clarify the state of water in the membrane. The results revealed that there were two states of water in the membrane, such as bound and free waters. Those membranes selectively transported water from aqueous ethanol solutions by pervaporation. Permselectivity toward water reached 171.
膜 33(3), 118-123, 2008-05-01
THE MEMBRANE SOCIETY OF JAPAN