Influence of Ion Pairing on Cation Transport in the Polymer Electrolytes Formed by Poly(ethylene oxide) with Sodium TetraFiuoroborate and Sodium Tetrahydroborate

R. Dupon, B. L. Papke, M. A. Ratner*, D. H. Whitemore, D. F. Shriver

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

149 Scopus citations

Abstract

Vibrational spectroscopic and conductivity data for complexes of NaBF4 and NaBH4 with poly(ethylene oxide) indicate that extensive contact ion pairing occurs in the NaBH4 complex but not in the NaBF4 complex. As a result the ionic conductivity is considerably lower in the NaBH4 complex due to trapping of the mobile sodium cations by the anion. Conductivity studies on mixed anion complexes of poly(ethylene oxide) containing both ion-pairing (BH4) and non-ion-pairing (BF4) anions suggest that cation transport in these systems is not limited by motion through the polymer helical channels in which the cation is thought to reside. Conduction between helical chains appears to be a dominant process.

Original languageEnglish (US)
Pages (from-to)6247-6251
Number of pages5
JournalJournal of the American Chemical Society
Volume104
Issue number23
DOIs
StatePublished - Jan 1 1982

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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