Pressure-Volume-Temperature Studies of a Polyurethane.

Abstract

Experimental pressure-volume-temperature data for a polyurethane elastomer above Tg are fitted to equation of state theories. The cell and hole theories, as applied to polymer liquids, both represent the data fairly well for appropriate choice of P*, V*, and T*; the characteristic pressure, volume, and temperature scaling parameters, respectively. P*, V*, and T* are found to obey a semiemperical equation which holds for a large number of polymers, and, by fitting the data to the hole theory, it is found that the hole fraction, 1-y, can be used as an ordering parameter to describe the pressure dependence of Tg. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 25, 1982
Accession Number
ADA122394

Entities

People

  • B. A. Newman
  • D. L. Questad
  • J. I. Scheinbeim
  • K. D. Pae

Organizations

  • Rutgers University–New Brunswick

Tags

DTIC Thesaurus Topics

  • Barometric Pressure
  • Elastomers
  • Equations
  • Glass
  • Glass Transition Temperature
  • High Pressure
  • Materials
  • Materials Science
  • Measurement
  • Military Research
  • Molecules
  • New Jersey
  • Polymers
  • Polyurethanes
  • Specific Volume
  • Transition Temperature
  • United States

Fields of Study

  • Chemistry

Readers

  • Quantum Chemistry
  • Reinforced Composite Materials
  • Theoretical Analysis.