Accession Number : AD0709353

Title :   THERMAL ANALYSIS OF A POLYPHENYL-as-TRIAZINE,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

Personal Author(s) : Wrasidlo,W. J. ; Hergenrother,P. M.

Report Date : JUN 1970

Pagination or Media Count : 25

Abstract : A well-characterized poly(phenyl-as-triazine) was pyrolysed under dynamic and isothermal conditions in vacuum and in air. Simultaneous thermogravimetric, differential thermal and thermobarometric analysis of polymer films indicate a multistage thermal decomposition. An exothermic reaction between 305 and 465C was shown to involve the asymmetric triazine ring. This leads to the formation of a stable intermediate symmetrical triazine and nitrilic products, primarily benzonitrile. Based on the data, a degradation scheme initially involving the scission of the nitrogen-nitrogen bond in the asymmetric triazine ring was postulated. (Author)

Descriptors :   (*TRIAZINES, *PYROLYSIS), (*POLYMERS, TRIAZINES), DIFFERENTIAL THERMAL ANALYSIS, THERMOGRAVIMETRIC ANALYSIS, BENZONITRILES, MASS SPECTROSCOPY, DECOMPOSITION, GAS CHROMATOGRAPHY

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE