A New Heat-Resistant Polymer from Dimer Diamine Bismaleimide. Part 1. Preparation and Free Radical Cure of Dimer Diamine Bismaleimide

Abstract

The preparation and free radical cure of the bismaleimide of dimer diamine is described where the polymer shows excellent thermal stability comparable to the aromatic substituted bismaleimide counterparts. An improved process for making the 'monomeric' bismaleimide of dimer diamine provides good yields of highly pure material. Contamination by polymer or other by-products commonly encountered is eliminated by a process that uses N,N'- dicyclohexylcarbodiimide/hydroxybenzotriazole co-reagents for cyclodehydration of the precursor bismaleamic acid of dimer diamine. Purification of the crude product can be accomplished by chromatography.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1984
Accession Number
ADA145664

Entities

People

  • Alan L. Woodman
  • Albert A. Defusco
  • Eugene C. Martin
  • Melvin P. Nadler

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Anhydrides
  • Chemical Synthesis
  • Chemistry
  • Chromatography
  • Fatty Acids
  • Fluids
  • Free Radicals
  • Heat Energy
  • Heat Resistant Plastics
  • Materials
  • Molecular Weight
  • Organic Chemistry
  • Resins
  • Tensile Properties
  • Tensile Strength
  • Thermal Properties
  • Thermal Stability

Fields of Study

  • Chemistry

Readers

  • Geochemistry
  • Organic Chemistry