VIBRATIONAL SPECTROSCOPIC DETERMINATION OF STRUCTURE AND ION PAIRING IN COMPLEXES OF POLY(ETHYLENE OXIDE) WITH LITHIUM SALTS.

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

Research output: Contribution to journalArticle

212 Citations (Scopus)

Abstract

A structural model for crystalline complexes of poly(ethylene oxide) (PEO) with various lithium salts is presented, based on vibrational spectroscopic studies; these complexes are known to exhibit ionic conductivities of greater than 10** minus **5 ( OMEGA -cm)** minus **1 at 100 degree C. Cation-dependent vibrational bands observed in the Raman indicate that significant cation-oxygen atom interactions occur and suggest that the polyether chain may wrap around the lithium cations. Spectroscopic studies indicate extensive contact ion pairing occurs in the PEO multiplied by (times) LiNO//3 complex, and this may contribute to the somewhat lower ionic conductivity of this complex as compared to other lithium salt complexes with similar structures but weaker cation-anion interactions.

Original languageEnglish
Pages (from-to)1434-1440
Number of pages7
JournalJournal of the Electrochemical Society
Volume129
Issue number7
Publication statusPublished - Jul 1982

Fingerprint

ethylene oxide
Polyethylene oxides
Lithium
Cations
Salts
lithium
Positive ions
Ions
salts
cations
Ionic conductivity
ion currents
ions
wrap
Polyethers
Anions
oxygen atoms
Negative ions
interactions
Oxygen

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

VIBRATIONAL SPECTROSCOPIC DETERMINATION OF STRUCTURE AND ION PAIRING IN COMPLEXES OF POLY(ETHYLENE OXIDE) WITH LITHIUM SALTS. / Papke, B. L.; Ratner, Mark A; Shriver, D. F.

In: Journal of the Electrochemical Society, Vol. 129, No. 7, 07.1982, p. 1434-1440.

Research output: Contribution to journalArticle

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