Permeation behavior of anions through poly(vinyl alcohol) membranes containing α-cyclodextrin or supramolecules coumposed of α -cyclodextrin and poly(ethylene glycol) in electrodialysis

摘要

Cross-linked poly(vinyl alchol) membranes containing α-cyclodextrin or inclusion complex of α-cyclodextrin with poly(ethylene glycol) (molecular weight (MW): 1000) were prepared by the casting method, following cross-linking reaction with formaldehyde. The membranes were evaluated by electrodialyzing mixed salt solutions composed of sodium chloride and sodium salts having various anions to observe the change in transport numbers of anions relative to chloride ions.