Addition-Type Polyimides from Solutions of Monomeric Reactants.

Abstract

The monomeric reactants approach was used to fabricate addition-type polyimide/graphite fiber composites with improved mechanical properties and thermal stability characteristics over those of composites derived from addition-type amide acid prepolymers. A screening study of 24 different monomer combinations was performed. The results of a more extensive investigation of a selected number of monomer combinations showed that the combination providing the best thermomechanical properties was 5-norbornene -2,3 -dicarboxylic acid monomethyl ester/4, 4'-methylenedianiline /3, 3'4, 4' -benzophenonetetracarboxylic acid dimethyl ester at a molar ratio of 2/3.09/2.09.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
ADA307400

Entities

People

  • George R. Lightsey
  • Peter Delvigs
  • Tito T. Serafini

Organizations

  • Glenn Research Center

Tags

DTIC Thesaurus Topics

  • Alcohols
  • Body Weight
  • Chemical Composition
  • Chemical Synthesis
  • Chemistry
  • Composite Material Fabrication
  • Composite Materials
  • Dwell Time
  • Elastic Properties
  • Flexural Strength
  • Materials Science
  • Mechanical Properties
  • Modulus Of Elasticity
  • Molecular Weight
  • Shear Strength
  • Test And Evaluation
  • Thermal Stability

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology
  • Reinforced Composite Materials