Observations on the Effects of Shear and Relaxation Times on the Phase Behavior of Polymer Solutions.

Abstract

Shearing (e.g., mixing) a polymer solution can shift the location of the upper critical solution temperature (USCT) and the lower critical solution (LCST) curves in pressure-temperature (P-T) space. Also, the location of these curves in P-T space is effected by the rate at which transitions are determined. Preliminary observations on the effects of shear and relaxation times on the phase behavior of the polystyrene-toluene-ethane system are presented. Keywords: Supercritical Fluid.

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Document Details

Document Type
Technical Report
Publication Date
Jan 13, 1987
Accession Number
ADA176252

Entities

People

  • Alan K. Mcclellan
  • Andrew J. Seckner
  • Mark A. Mchugh

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemical Engineering
  • Contracts
  • Dielectric Polymers
  • Engineering
  • Governments
  • High Pressure
  • Macromolecules
  • Military Research
  • Mixing
  • Mixtures
  • Molecular Weight
  • Molecules
  • Phase
  • Phase Diagrams
  • Polymers
  • Relaxation Time
  • Security

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Fluid Mechanics and Fluid Dynamics.
  • Quantum Chemistry

Technology Areas

  • Space