Accession Number : AD0709326

Title :   POLYQUINOXALINES CONTAINING FLEXIBILIZING GROUPS IN THE CHAINS,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

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

Report Date : JUN 1970

Pagination or Media Count : 16

Abstract : Solution condensations of either 3,3',4,4'tetraaminodiphenyl sulfone or 3,3'4,4'-tetraaminobenzophenone in combination with various bisbenzils or glyoxals lead to high molecular weight polyquinoxalines. The effect of polymer structure on solubility, glass transition and decomposition temperatures was investigated. Phenylated polyquinoxalines were readily soluble in chlorinated solvents while their structural nonphenylated analogs were insoluble. Polymer decomposition temperatures ranged between 430 and 520C depending upon structure. Polymer films cast from either chloroform or meta-cresol solutions exhibited good toughness and flexibility. (Author)

Descriptors :   (*POLYMERS, SYNTHESIS(CHEMISTRY)), NITROGEN HETEROCYCLIC COMPOUNDS, THERMOGRAVIMETRIC ANALYSIS, ORGANIC SULFUR COMPOUNDS, AMINES

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE