Accession Number : ADA304425
Title : Phosphazene Diamines.
Descriptive Note : Contractor rept., Jun 79-Apr 80,
Corporate Author : ULTRASYSTEMS INC IRVINE CA
Personal Author(s) : Paciorek, K. L. ; Harris, D. H. ; Ito, T. I. ; Kratzer, R. H.
PDF Url : ADA304425
Report Date : OCT 1980
Pagination or Media Count : 68
Abstract : The objectives of this contract were to optimize the synthesis of a specific phosphazene diamine, to prepare other phosphorus-containing diamines, and to evaluate their effect upon certain characteristics of epoxy resins, prepared via reaction with MY 720, in particular, char yield at elevated temperatures. The synthesis of the phosphazene diamine resulting from the interaction of methylenedianiline with 4, 4'-bis(diphenylphosphino)biphenyl was simplified into a one-step process giving 77% yield of the pure product. Using this procedure, a related diamine containing his (diphenylphosphino) methane was obtained in a 70% yield. Preparation of another class of phosphorus-containing amines based upon p-aminophenyldlphenyl- phosphine was unsuccessful; the inability to produce p-aminophenyllithium was responsible for this failure. The approach utilizing amines derived from p-aminophenoxydiphenylphosphine was successfully explored. jg p2
Descriptors : *AMINES, *PHOSPHAZENE, SYNTHESIS, HIGH TEMPERATURE, PURITY, YIELD, METHANE, METHYLENES, PHOSPHINE, EPOXY RESINS, PHENYL RADICALS, PHOSPHORUS, ANILINES, CHARRING.
Subject Categories : Organic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE