Studies on Syntheses and Permeabilities of Special Polymer Membranes. 59. Active Transport of Organic Ions through Crosslinked Chitosan Membrane

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Abstract
Active transport of organic ions such as benzenesulfonate and benzoate ions and amino acids was studied through a chitosan–PVA membrane under various conditions. The organic anions of benzenesulfonate and benzoate ions were actively transported through the chitosan–PVA membrane from the acidic side to the alkaline side, but the active transport of amino acid occurred from the alkaline side to the acidic side. These active transports were significantly dependent on a pH difference and electric potential difference between the two sides of the membrane