Abstract
Each ion exchange element of a charged mosaic membrane was prepared as an independent ion exchange membrane by means of the cast method and the properties of the membrane were examined. In addition, to understand the details of the transport process in the membrane the electrochemical techniques using redox substances as a transport ion were employed to investigate the diffusivity of ion, the reversibility of the system, and the ion concentration in the membrane, and the results were compared to those of cast membranes. As a result, the cation exchange membrane showed approximately ideal membrane behavior. On the other hand, the anion exchange membrane suggested slightly non-ideal membrane performance because the hydrophobic interaction between the polymer micro gel in the membrane and transport ions used in this study was strong, and therefore a gap with ideal characteristics appeared. Furthermore, ion transport through a cation exchange membrane and an anion exchange membrane depended upon quantities of polymer gel content, which are ion exchange elements.
