A RELATION BETWEEN THE RELAXATION MECHANISM AND THE DISTRIBUTION OF RELAXATION TIMES.

Abstract

It was found that materials which relax by bond interchange in the glass transition region exhibit a much narrower distribution of relaxation times than those which relax by molecular flow. The half-width of the distribution is defined. Materials which relax by bond interchange have half-width values below ca 0.8, whereas those relaxing by molecular flow have values above ca 1.0. The correlation represents a useful diagnostic tool for the simple identification of the relaxation mechanism in polymers. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1968
Accession Number
AD0679903

Entities

People

  • A. Eisenberg
  • L. A. Teter

Organizations

  • McGill University

Tags

DTIC Thesaurus Topics

  • California
  • Cooperation
  • Identification
  • Materials
  • Relaxation Time
  • Transitions

Readers

  • Operations Research
  • Polymer Science and Technology
  • Spectroscopy.