Accession Number : ADD002857

Title :   Addition Curable Phenyl-Quinoxaline Compositions and Their Synthesis.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Kovar,Robert F ; Arnold,Fred E

Report Date : 29 Jun 1976

Pagination or Media Count : 9

Abstract : An aromatic bis(o-diamine) is reacted with an aromatic bisbenzil to provide a benzil end-capped quinoxaline oligomer which is then reacted with 4-(3-ethynylphenoxy)orthophenylene diamine to give an ethynyl terminated polyquinoxaline. Because the polyquinoxalines can be cured to provide thermally stable polymer compositions having superior mechanical properties, the compositions are particularly suitable for use in the fabrication of reinforced composite structures.

Descriptors :   *Heat resistant plastics, *Patents, *Synthesis(Chemistry), Curing, Nitrogen heterocyclic compounds, Polymers

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE