Poly(monoalkyl group containing organophosphazenes) and method f

Details Poly(monoalkyl group containing organophosphazenes) and method f Poly(monoalkyl group containing organophosphazenes) and method f

1979-05-21

1980-12-02

Briggs, Sr., Wilbert J.

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

Synthetic resins

From phosphorus-containing reactant

2606065P, 528168, C08G 8300

Patent

active

042372631

ABSTRACT:
Poly(organophosphazenes) containing one alkyl group per each three repeating units are prepared. These polymers are represented by the structure: ##STR1## wherein R is alkyl containing from 1 to 10 carbon atoms; wherein X is selected from the group consisting of chlorine and --OR' radicals in which R' is the same as R or is selected from the group consisting of substituted alkyl radicals and substituted or unsubstituted aryl radicals and wherein n is from 3 to 15,000.
Polymers of the above structure in which X is chlorine are prepared by thermally polymerizing a monoalkyl-pentachloro-cyclotriphosphazene having the formula N.sub.3 P.sub.3 Cl.sub.5 R in which R is as defined above. Polymers of the above structure in which X is an --OR' radical as defined above are prepared by thermally polymerizing the monoalkyl-pentachloro-cyclotriphosphazene and then reacting the resultant linear polymer with a suitable alkali metal alkoxide or aryloxide.

REFERENCES:
patent: 3169933 (1965-02-01), Liu et al.

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