MOLECULAR WEIGHT DEPENDENCE OF THE GLASS TRANSITION TEMPERATURE IN SODIUM PHOSPHATE POLYMERS.

Abstract

It is shown that an inorganic ionic polymer (sodium polyphosphate) exhibits the same type of glass transition temp. versus average chain length behavior as non-ionic organic polymers. If the chain ends resemble the terminal units, specifically in terms of the number of anions per phosphorus atom, the material is entirely analogous in its behavior to the organic materials, as shown, for instance, by the applicability of the Gibbs-DiMarzio theory. By contrast, if the terminal units possess two anions per phosphorus atom, a profound change in behavior is observed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 10, 1964
Accession Number
AD0601743

Entities

People

  • A. Eisenberg
  • T. Sasada

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Amorphous Materials
  • Contrast
  • Glass
  • Glass Transition Temperature
  • Materials
  • Molecular Weight
  • Organic Materials
  • Phosphorus
  • Terminals
  • Transition Temperature
  • Transitions

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology