Accession Number : ADA302405

Title :   Synthesis of Perfluoroalkylene Aromatic Diamines.

Descriptive Note : Final rept. 14 Apr 77-12 May 78,

Corporate Author : ULTRASYSTEMS INC IRVINE CA

Personal Author(s) : Paciorek, K. L. ; Ito, T. I. ; Nakahara, J. H. ; Kratzer, R. H.

PDF Url : ADA302405

Report Date : AUG 1978

Pagination or Media Count : 61

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

Descriptors :   *AMINES, *FLUORINE, *AROMATIC COMPOUNDS, *METHYLENES, *POLYIMIDE RESINS, THERMAL PROPERTIES, SYNTHESIS, OXIDATION, IODINE, NUCLEI, PROPANE, ANILINES.

Subject Categories : Organic Chemistry
      Polymer Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE