A STUDY OF THE POLYMERIZATION OF THERMOSETTING POLYMERS BY ELECTRICAL RESISTIVITY TECHNIQUES

Abstract

Electrical volume resistivity measurements made isothermally during polymerization have been used to study the bulk polymerization of epoxide, polyester and polyurethane polymers. Whenever possible, kinetic parameters have been calculated. The over-all activation energy (Ea) for the polymerization of amine polymerized epoxide polymers was found to be about 14 to 17 Kcal/mole. After polymerization was complete, the activation energy (Ec) for the electrical conduction process in the solid polymers was calculated. (Author-PL).

Document Details

Document Type
Technical Report
Publication Date
Aug 05, 1959
Accession Number
AD0228978

Entities

People

  • M.c. Petree
  • R.w. Warfield

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Energy
  • Heat Of Activation
  • Macromolecules
  • Measurement
  • Polyesters
  • Polymerization
  • Polymers
  • Polyurethanes

Fields of Study

  • Chemistry
  • Materials science

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science
  • Reinforced Composite Materials