Iodine L-Edge X-Ray Absorption Fine Structure Studies of Polymer-Iodide Salt Complexes.

Abstract

We report measurements of extended x-ray absorption fine structure (EXAFS) and x-ray absorption near edge structure (XANES) of the L edge of iodine in the polymer electrolytes PPO8NaI, PPO8LiL, and PEI10NaI. The EXAFS indicates a disordered environment for the iodine, although the PEI complex does exhibit several weak oscillations indicating a significantly less disordered environment of the anion in this complex. The XANES results suggest that the iodine is becoming more covalent in the sequence PPO8LiI-PEI10NaI-PPO8NaI, implying there are substantial interactions between the anions and cations. Keywords: Polymer electrolytes; Poly(propylene oxide); Poly(ethylene imine).

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Document Details

Document Type
Technical Report
Publication Date
Dec 22, 1987
Accession Number
ADA190650

Entities

People

  • M. L. Denboer
  • S. G. Greenbaum

Organizations

  • Hunter College

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Alkenes
  • Band Structures
  • Electrolytes
  • Environment
  • Ethylenes
  • Films
  • Materials
  • Measurement
  • Military Research
  • New York
  • Oscillation
  • Oxides
  • Polymers
  • Spectra
  • X Rays

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology