NMR, DSC, and Electrical Conductivity Studies of MEEP Complexed with NaCF3So3

Abstract

23 Na NMR, electrical conductivity, and DSC studies have been carried out on MEEP complexed with NaCF3SO3. All results are similar to those for other amorphous ion conducting polymers. Specifically, the NMR spectrum associated with mobile Na+ ions exhibits motional narrowing above the glass transitions temperature, and activation energies deduced from both T1 and linewidth measurements reflect localized motion of the cations. The electrical conductivity exhibits the usual non-Arrhenius behavior. However, using previous data for PDMS-EO complexes, it is shown that the VTF or WLF equations are only approximate as the parameters depend upon the temperature range. This sheds light on several discrepancies in the literature. Keywords: Solid state ionics, Phosphazenes.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1988
Accession Number
ADA197335

Entities

People

  • John J. Fontanella
  • Mary C. Wintersgill

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Electrical Conductivity
  • Energy
  • Equations
  • Glass
  • Glass Transition Temperature
  • Heat Of Activation
  • Materials
  • Measurement
  • Military Research
  • New York
  • Relaxation Time
  • Resonance
  • Security
  • United States
  • United States Naval Academy

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.