Study of Reaction Kinetics and Development of Elastic Properties in Network Polymerization Systems by the Impulse Technique.

Abstract

The total impulse approach to linear viscoelasticity developed by Farris has been extended to the study of kinetics of network formation and development of mechanical properties in nonlinear polymerization reactions. A single experiment permits kinetic data and absolute measurements of viscosity and elastic parameters to be obtained during the elevation of a reacting system from a liquid to a glassy or rubber network. The method was applied to the cure of an epoxi-amine system at different temperature to obtain kinetic information (gel times), viscosities and elastic parameters. Theoretical predictions of pre-gel and post-gel relations are in good agreement with the observed experimental values. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 26, 1984
Accession Number
ADA148187

Entities

People

  • J. C. W. Chien

Organizations

  • University of Massachusetts Amherst

Tags

DTIC Thesaurus Topics

  • Chemical Kinetics
  • Chemical Reactions
  • Elastic Properties
  • Equations
  • Glass Transition Temperature
  • Kinetic Theory
  • Kinetics
  • Macromolecules
  • Materials
  • Mechanical Properties
  • Molecular Weight
  • Molecules
  • Polymerization
  • Polymers
  • Resins
  • Shear Modulus
  • Transition Temperature

Readers

  • Calculus or Mathematical Analysis
  • Organic Chemistry
  • Structural Health Monitoring of Composite Structures.