Abstract
Conductivities of poly(vinyl alcohol) membranes having three kinds of quaternary ammonium groups have been measured at 25°C at equilibrium with 10 −3−1 mol-l NaCl, NaBr, NaI, NaNO 3 and NaClO 4 aqueous solutions. The results are discussed for two salt concentration ranges; sufficiently low to give almost concentration-independent conductivities and moderate to high to give increasing or decreasing conductivities with the salt concentration. The order of the conductivities in the low salt concentration range was interpreted in terms of the crystallographic anion size, while the concentration dependencies of the conductivities in the higher salt concentration range were interpreted in terms of the size of the hydrated anions, membrane hydration, and the contribution of the structural relaxation of the membrane.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
