DSC, Electrical Conductivity, and NMR Studies of Salt Precipitation in PPO Complexes.

Abstract

DSC and electrical conductivity measurements of PPQ complexed with Sodium Iodide and Potassium Thiocyanine are reported. In addition, 23 NMR measurements of PPO8NaI, both at ambient and elevated pressure (2.0 kbar) have been performed. The DSC data clearly indicate that the salt precipitates out of the complexes at about 85 for NaI and 60C for KSCN. These effects are manifested by a dramatic departure of the conductivity form VTF behavior, and a relatively sharp drop in mobile Na concentration deduced from NMR measurements at somewhat elevated temperature (about 80C). High pressure NMR linewidth measurements are consistent with a pressure-induced increase in the glass transition temperature.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA183410

Entities

People

  • John J. Fontanella
  • Kresimir J. Adamic
  • Mary C. Wintersgill
  • Steven G. Greenbaum

Organizations

  • Hunter College

Tags

Communities of Interest

  • Advanced Electronics
  • Counter IED
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemical Engineering
  • Chemistry
  • Electrical Conductivity
  • Engineering
  • Glass Transition Temperature
  • High Pressure
  • Hydrostatic Pressure
  • Materials
  • Materials Science
  • Military Research
  • New York
  • Pressure Measurement
  • Transition Temperature
  • United States
  • United States Naval Academy

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.