Alkylated phosphazene oligomers and method of preparation

Details Alkylated phosphazene oligomers and method of preparation Alkylated phosphazene oligomers and method of preparation

1980-11-03

1983-02-22

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528168, C07F 965

Patent

active

043747817

ABSTRACT:
Alkylated phosphazene oligomers of the general formula (NP(X.sub.2)).sub.n PRH, wherein X represents chlorine or bromine, R represents a linear or branched alkyl, and n represents an integer from 2 to 8, are prepared by reacting, in a nonoxidizing atmosphere, a perhalopolyphosphazene, a Grignard reagent, and a cuprous complex in solution, followed by the addition of a secondary or tertiary alcohol. Polymers useful as high-temperature elastomers, are prepared from the halo-substituted oligomers by heating them at a temperature from about 200.degree. C. to about 300.degree. C., followed by a reaction with an amine, metal alkoxide, or a metal aryloxide at a temperature from 20.degree. to 200.degree. C.

REFERENCES:
patent: 3131207 (1964-04-01), Ratz
patent: 3453235 (1969-07-01), Klender
patent: 4136084 (1979-01-01), Dieck et al.

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