Dynamic Mechanical Properties of Solvent Crazed Polystyrene.

Abstract

The dynamic mechanical properties of polystyrene crazed in various organic solvents were determined on a Rheovibron Viscoelastometer. It was found that the loss curves for polystyrene crazed in the presence of ethylene glycol, diethylene glycol and triethylene glycol were similar to the uncrazed polystyrene. However, when 1-pentanol was used as the solvent, there is a substantial decrease in the glass transition temperature of polystyrene. The latter evidence is in clear agreement with the plasticization mechanism of solvent crazing. However, the former data with the glycols seem to indicate that the surface stabilization mechanism cannot be ruled out. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA035313

Entities

People

  • B. A. Shah
  • G. Akovali
  • Meikun Shen

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Alkenes
  • Boiling Point
  • California
  • Chemical Engineering
  • Chemical Synthesis
  • Chemistry
  • Dielectric Polymers
  • Ethylene Glycol
  • Ethylenes
  • Glass Transition Temperature
  • Mechanical Properties
  • Military Research
  • Organic Solvents
  • Polyethylene Glycols
  • Polymers
  • Solvents
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Engineering.