Vibrational spectroscopy and structure of polymer electrolytes, poly(ethylene oxide) complexes of alkali metal salts

B. L. Papke, M. A. Ratner, D. F. Shriver

Research output: Contribution to journalArticle

296 Citations (Scopus)

Abstract

Complexes of poly(ethylene oxide) (PEO), with various alkali metal salts are known to exhibit ionic conductivities which exceed 10-5(Ωcm)-1 at moderate temperatures. We have employed IR and Raman spectroseopy to study well characterized samples of the following polymer-salt complexes: PEO·NaBr, PEO·NaI, PEO·NaSCN, PEO·NaBF4, PEO·NaCF3SO3, PEO·KSCN, PEO·RbSCN and PEO·CsSCN. Cation-dependent vibrational bands observed in the far IR and M-On symmetric stretching bands observed in the Raman support a cation-oxygen atom interaction, and indicate the polyether chain may wrap around the cations. In particular, NaX and KX complexes of PEO are believed to have a helical configuration for the polymer which differs from that of pure PEO. Some general rules are presented for polymer-salt complex formation.

Original languageEnglish
Pages (from-to)493-500
Number of pages8
JournalJournal of Physics and Chemistry of Solids
Volume42
Issue number6
DOIs
Publication statusPublished - 1981

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Alkali Metals
Vibrational spectroscopy
Alkali metals
ethylene oxide
Polyethylene oxides
alkali metals
Electrolytes
Polymers
Salts
electrolytes
salts
Cations
cations
Positive ions
polymers
spectroscopy
wrap
ion currents
Polyethers
oxygen atoms

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Vibrational spectroscopy and structure of polymer electrolytes, poly(ethylene oxide) complexes of alkali metal salts. / Papke, B. L.; Ratner, M. A.; Shriver, D. F.

In: Journal of Physics and Chemistry of Solids, Vol. 42, No. 6, 1981, p. 493-500.

Research output: Contribution to journalArticle

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