Accession Number : AD0285370

Title :   SCIENTIFIC RESEARCH-DEVELOPMENT OF HIGH TEMPERATURE RESISTANT POLYMERS

Corporate Author : GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s) : GREENFIELD,G.L.

Report Date : 30 JAN 1961

Pagination or Media Count : 1

Abstract : Polymerization studies on the Si-O-P compounds were conducted. Si-O-P compositions were prepared corresponding in molecular weights to the dimer, trimer, and tetramer. The dimer was formed by the reaction of benzene phosphonylicACID AND DIPHENYLSILANEDIOL. Augmentation of this dimer to the trimer was accomplished by catalyzing with triethanolamine in the presence of calcium glycolate. Although polymers of sufficiently high molecular weight to exhibit elasticity were not attained, the approach developed is of significance in polymer science directed toward producing higher molecular weight inorganic polymers. A thermoplastic epoxidized triazine polymer was prepared by copolymerization of 2,4-diglycidyl-6-methoxy-s-triazine and fumaric acid. This polymer could be crosslinked (cured) with benzoyl peroxide catalyst. The cured polymer softened at 100 C, frothed at 150 C, yet became rigid at 250 C. (Author)

Descriptors :   *HEAT RESISTANT PLASTICS, *OXYGEN COMPOUNDS, *PHOSPHORUS COMPOUNDS, *SILICON COMPOUNDS, ACIDS, ALKOXY RADICALS, AMIDES, BENZENES, BENZOYL RADICALS, CALCIUM COMPOUNDS, CATALYSTS, CHEMICAL REACTIONS, COPOLYMERIZATION, EPITAXIAL GROWTH, ETHANOLS, GLYCOLS, MOLECULAR WEIGHT, PENTANOLS, PEROXIDES, PHENYL RADICALS, PHOSPHONYL RADICALS, POLYMERIZATION, SILANES, SYNTHESIS, TRIAZINES

Distribution Statement : APPROVED FOR PUBLIC RELEASE