Addition Curable Phenyl-Quinoxaline Compositions and Their Synthesis.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Pagination or Media Count:
An aromatic biso-diamine is reacted with an aromatic bisbenzil to provide a benzil end-capped quinoxaline oligomer which is then reacted with 4-3-ethynylphenoxyorthophenylene 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.
- Polymer Chemistry