POLYPHOSPHAZENE COPOLYMERS CONTAINING ACETYLENIC SUBSTITUENTS AND PROCESS FOR PREPARING SAME

摘要

Polyphosphazene copolymers are prepared which contain units represented by the formulas: wherein X is -OR'RC-C &uarr& CH in which R and R' are hydrogen or alkyl groups containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20