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Structures, properties, and alkali metal ion transport membrane of polyelectrolyte complexes consisting of methyl glycol chitosan, glycol chitosan, and poly(vinyl sulfate)
Author(s) -
Kikuchi Yasuo,
Kubota Naoji,
Mitsuishi Hiroshi
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070350119
Subject(s) - polyelectrolyte , chitosan , aqueous solution , membrane , vinyl alcohol , chemistry , polymer chemistry , chemical engineering , ion transporter , inorganic chemistry , materials science , nuclear chemistry , polymer , organic chemistry , biochemistry , engineering
Mixtures of methyl glycol chitosan and glycol chitosan were reacted with poly(vinyl sulfate) to form many different water‐insoluble polyelectrolyte complexes (PEC) in aqueous solution at various hydrogen ion concentrations. It was revealed from elemental analyses, infrared (IR) spectroscopy, and solubilities of PEC that molecular structures of each PEC are dependent on [H + ]. PEC membranes were made from casting solutions of all kinds of PEC, and transport phenomena through the membrane of PEC prepared in a pH 13.0 solution were investigated under various conditions. The transport ratio of Na + and the electric potential difference between the left‐ and right‐hand sides of the membrane were measured, and it is suggested that the driving force for active transport depends on the membrane potential, Donnan potential and diffusion potential. Moreover, permeability of K + was higher than that of Na + in selective transport.