Catalytic process for the preparation of phosphazene polymers

Details Catalytic process for the preparation of phosphazene polymers Catalytic process for the preparation of phosphazene polymers

1976-12-06

1978-09-26

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

423300, 521 95, 521189, 528399, C08G 7902

Patent

active

041168917

ABSTRACT:
A process is disclosed for the catalytically-induced preparation of phosphazene polymers. Cyclic halophosphazenes are polymerized in the presence of a catalytically sufficient amount of a Lewis acid catalyst.

REFERENCES:
patent: 3370220 (1968-02-01), Allcock et al.
patent: 3443913 (1969-05-01), Bieniek et al.
Vale, Polyphosphonitrilic Chloride, Macromolecular Synthesis, vol. 2, pp. 91-94, 1966.

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