High Pressure Conductivity and NMR Investigation of Siloxane-Based Polymer Electrolytes
- 1 January 1988
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics
- Vol. 160 (1) , 347-357
- https://doi.org/10.1080/15421408808083031
Abstract
Variable temperature and pressure conductivity and 23Na nuclear magnetic resonance (NMR) measurements of several siloxane-based polymers complexed with NaCF3SO3 are reported. The conductivity exhibits V.T.F. behavior of the type commonly observed in amorphous polymer electrolytes, and activation volumes (29.9 cm3/mol at 313K for one sample) typical of these materials. The NMR linewidths associated with mobile Na+ ions exhibit motional narrowing above Tg in a manner similar to other Na-polymer electrolytes. The pressure dependence of the 23Na linewidth is consistent with a 10-15 K/kbar increase in Tg.Keywords
This publication has 4 references indexed in Scilit:
- Ionic conductivity in solid, crosslinked dimethylsiloxane-ethylene oxide copolymer networks containing sodiumJournal of Applied Physics, 1986
- High ionic conductivity in poly(dimethyl siloxane‐co‐ethylene oxide) dissolving lithium perchlorateJournal of Polymer Science Part C: Polymer Letters, 1984
- The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming LiquidsJournal of the American Chemical Society, 1955
- Relaxation Effects in Nuclear Magnetic Resonance AbsorptionPhysical Review B, 1948