TSDC (Thermally Stimulated Depolarization Current) Studies of PEO (Poly(Ethylene Oxide)) and PEO Complexed with KSCN.

Abstract

A digitally controlled thermally stimulated depolarization current facility is described and measurements on poly(ethylene oxide) (PEO) and PEO complexed with KSCN are reported. The results complement and extend previous electrical relaxation studies on these materials. In particular, in PEO the presence of a relaxation previously labeled alpha sub c is confirmed. The relaxation is assigned to defects in the crystalline phase. In addition, the gamma relaxation region is shown to consist of at least two relaxations. Further, a high temperature family of peaks is obtained which are associated with space charge. For KSCN-complexed PEO three low temperature relaxations are observed in the gamma relaxation region. The relationship between these relaxations and previously reported dielectric relaxation results is established and possible origins of the relaxations are discussed. Finally, differential scanning calorimetry studies were carried out on all of the materials. Additional keywords: Solid electrolytes; Polymer electrolytes. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA157488

Entities

People

  • John J. Fontanella
  • M. C. Wintersgill

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Alkenes
  • Calorimetry
  • Chemistry
  • Computers
  • Control Systems
  • Electrodes
  • Engineering
  • Ethylene Oxide
  • High Temperature
  • Jet Propulsion
  • Low Temperature
  • Materials
  • Materials Science
  • Measurement
  • Military Research
  • Universities

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.

Technology Areas

  • Space