Synthesis of Perfluoroalkylene Aromatic Diamines.

Abstract

The objective of this contract was to synthesize analogues of methylene dianilines in which the methylene group between the two aromatic nuclei is replaced by various perfluoroalkylene linkages and to determine the hydrolytic, thermal, and thermal oxidative characteristics of PMR Polyimides derived from these diamines. Attempts to prepare 1,2-bis (4-aminophenyl)tetrafluoroethane were unsuccessful. 1,3-Bis (4-aminophenyl)hexafluoropropane was obtained by coupling of 1 ,3-diiodohexafluoropropane with p-iodoacetanilide followed by liberation of the free amine. Since 1,3-diiodohexafluoropropane is unavailable commercially it had to be synthesized from perfluoroglutarimidine. jg p. 9

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1978
Accession Number
ADA302405

Entities

People

  • J. H. Nakahara
  • K. L. Paciorek
  • R. H. Kratzer
  • T. I. Ito

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Alcohols
  • Alkanes
  • Aqueous Solutions
  • Body Weight
  • Chemical Synthesis
  • Chemistry
  • Hydrophobic Properties
  • Jet Propulsion
  • Mass Spectra
  • Materials
  • Materials Laboratories
  • Mixtures
  • Organic Chemistry
  • Resins
  • Spectra

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Polymer Science and Engineering.