High Pressure Conductivity and NMR (Nuclear Magnetic Resonance) Investigation of Siloxane-Based Polymer Electrolytes.

Abstract

Variable temperature pressure conductivity and 23 Na 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 cc/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 23 Na linewidth is consistent with a 10-15K/kbar increase in Tg. Keywords: Conductivity, High pressure, Polymer electrolytes, Siloxanes.

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Document Details

Document Type
Technical Report
Publication Date
Dec 22, 1987
Accession Number
ADA190636

Entities

People

  • J. J. Fountanella
  • K. J. Adamic
  • M. C. Wintersgill
  • S. G. Greenbaum
  • Y. S. Pak

Organizations

  • Hunter College

Tags

DTIC Thesaurus Topics

  • Chemistry
  • Conductivity
  • Electrical Conductivity
  • Equations
  • Glass
  • High Pressure
  • Magnetic Resonance
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • New York
  • Nuclear Magnetic Resonance
  • Physics
  • Polymers
  • United States
  • Universities

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Polymer Science and Technology
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.