Polyphosphazene copolymers containing malononitrile and _substit

Details Polyphosphazene copolymers containing malononitrile and _substit Polyphosphazene copolymers containing malononitrile and _substit

1978-09-08

1979-12-25

Briggs, Sr., Wilbert J.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528362, 528399, 528374, 528392, C08G 7906

Patent

active

041806476

ABSTRACT:
Polyphosphazene copolymers are prepared which certain randomly distributed units represented by the formulas: ##STR1## wherein X is --CR(CN).sub.2 in which R is H, a branched chain, a straight, or cyclic alkyl group containing from 1 to 12 carbon atoms or an aryl group or mixtures thereof, and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups or mixtures thereof.
In the copolymer units represented by the above formulas, all X substituent groups may be the same or they may be mixed and all X' substituent groups may be the same or mixed. In the mixtures, the X substituent groups may be mixtures of different --CR(CN).sub.2 groups and the X' substituent groups may be mixtures of alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups or mixtures within each group.
The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as for moldings, coatings, and the like where heat stability and solvent resistance are important.

REFERENCES:
patent: 3370020 (1968-02-01), Allcock et al.
patent: 4018822 (1977-04-01), Sharma et al.

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