SYNTHESIS OF SEMI-INORGANIC FLUORINE POLYMERS. Period covered: June 1, 1959 through May 31, 1960
The mechanism of the deammonation reaction of perfluoroalkyl amidines was explored and the first step shown to be the formation of perfluoroalkyl imidines. These intermediate compounds readily form copper(II) and zinc chelates. Further steps in the deammonation reaction, which results finally in formation of a symmetrical triazine ring, are proposed. The possible formation of a linear polymeric structure from the low-temperature reaction of perfluoroglutaronitrile with perfluorobutyramidine is described. This structure is a possible precursor to a linear perfluoroalkyl-triazine polymer. Copolymerization of perfluoroglutaronitrile with perfluorobutyronitrile in the presence of basic catalysts other than ammonia is described. Copolymerization of perfluoroglutaronitrile with perfluoropropionitrile and perfluoroacetonitrile in the presence of catalytic amounts of ammonia appears to furnish copolymers of physical characteristics different from those previously reported but with high- temperature stability. Cotrimerization of perfluoroacetonitrile with benzonitrile is demonstrated and the resulting compounds, 2,4-bis phenyl6- trifluoromethyl-1,3,5-triazine and 2-phenyl-4,6-bis trifluoromethyl-1,3,5- triazine, are considered as possible monomers. (For preceding period see WADD-TR- 59-272 (Pt.I).) (auth)
- Research Organization:
- Florida. Univ., Gainesville
- NSA Number:
- NSA-14-024036
- OSTI ID:
- 4153238
- Report Number(s):
- WADD-TR-59-272(Pt.II)
- Country of Publication:
- United States
- Language:
- English
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