Accession Number : AD0699888

Title :   SYNTHESIS AND EVALUATION OF NEW PHENYLATED POLYQUINOXALINES,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Augl,Joseph M. ; Wrasidlo,Wolfgang J.

Report Date : 02 OCT 1969

Pagination or Media Count : 29

Abstract : The syntheses and a preliminary evaluation of two new phenylated polyquinoxalines are reported. Their thermal, oxidative, solubility, and processability properties are compared with each other and with five other polyquinoxalines. Significant relationships between chemical structures and thermal and oxidative stabilities are shown. Polyquinoxalines which are phenylated show greatly superior properties over the nonphenylated types. Further, these can be dissolved in many solvents after extended exposure to 250C in air. One of these new polymers had a film flex-life of more than 10 days at 400C (725F) in air. The polymerization was unexpectedly found to proceed at room temperature. (Author)

Descriptors :   (*POLYMERS, SYNTHESIS(CHEMISTRY)), (*HEAT RESISTANT PLASTICS, SYNTHESIS(CHEMISTRY)), THERMAL STABILITY, POLYMERIZATION, SOLUBILITY, FILMS

Subject Categories : Polymer Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE