Thermoset High-Temperature Systems Based on the Homolytic Polymerization of Benzocyclobutene Aromatic Imide Monomers and Oligomers

Abstract

A new series of bisbenzocyclobutene-terminated aromatic imide oligomers has synthesized from the condensation reaction of 4- aminobenxocyclobutene and the perspective dianhydride in refluxing acetic acid/ toluene. The differential scanning calorimetric studies of the foregoing monomers indicated that polymerization exotherms began at 229-250 C and reached their maxima at 258-263 C. The cured samples (250-254 C; Nitrogen; 8 hrs) were surprisingly stable toward thermooxidative degradation; only 7- to 10- percent weight loss was observed after 200 hrs (in air) at 314 C (600 F). Keywords: Thermosets; Benzocyclobutene; High temperature; Imide; Oligomers; Butenes.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1986
Accession Number
ADA179775

Entities

People

  • Fred E. Arnold
  • Leon-seng Tan

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Acetic Acid
  • Aeronautical Laboratories
  • Air Force
  • Air Force Facilities
  • Alkanes
  • Chemical Synthesis
  • Chemistry
  • Chlorides
  • Ethers
  • Glass Transition Temperature
  • High Temperature
  • Materials
  • Materials Laboratories
  • Sodium Compounds
  • Thermal Properties
  • Thermosetting Plastics
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology