Ion and Polymer Chain Motion in a Superionic Sodium-Poly(Ethylene Oxide) Complex.

Abstract

Magnetic resonance measurements have been performed on the ion conducting complex poly(ethylene oxide)4.5NaC104. Low temperature 23Na NMR spectra suggest a highly symmetric environment for the Na-ions as evidenced by the absence of quadrupole broadening. Proton spin-lattice relaxation measurements provide an estimate of 4x10 to the -10 power sec for the polymer chain motional correlation time at T=69C. Correlation times of tumbling paramagnetic probe molecule have been extracted from EPR spectra of 15N-enriched TANOL-doped complex. Changes in polymer chain mobility above T=120C are inferred from the results and may be consistent with previous scanning calorimetry measurements. Originator supplied keywords include: Solid electrolytes; poly(ethylene oxide); molecular motion; NMR; EPR.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADA152290

Entities

People

  • A. N. Shetty
  • S. G. Greenbaum

Organizations

  • Hunter College

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Engineering
  • Chemistry
  • Corporations
  • Engineering
  • Ethylene Oxide
  • Ethylenes
  • Jet Propulsion
  • Low Temperature
  • Magnetic Resonance
  • Materials
  • Materials Science
  • Military Research
  • New York
  • Physics
  • Quantum Properties
  • United States

Fields of Study

  • Materials science

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  • Materials Science and Engineering.
  • Polymer Science and Technology

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  • AI & ML
  • AI & ML - Bayesian Inference