POLYPHOSPHAZENE POLYMERS CONTAINING N-SUBSTITUTED AMIDO AND IMIDO SUBSTITUENTS AND PROCESS FOR THEIR PREPARATION

摘要

Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: wherein X is represented by: wherein Y is selected from the group consisting of and -SO2- and p=0 or 1; when p=0, R1 and R2 are independently selected from a group consisting of substituted or unsubstituted aliphatic, aryl, araryl, and alkylaryl radicals or R1 and R2 can form a cyclic amide containing radical wherein R1 and R2 taken together are selected from a group consisting of -CH2)n where n=2 to 12, wherein R3 is a lower alkyl radical or hydrogen; and when p=1, R1 and R2 taken together form a linkage in a cyclic imide containing radical selected from a group consisting of -CH2)n, where n'=2 or 3 and where R3 is as defined above, R4 is selected from the group consisting of hydrogen, halogen and alkyl radical containing 1 to 6 carbon atoms; and p' is 0 to 4, X' is a substituted or unsubstituted alkoxy, aryloxy, amino or mercapto substituent group or mixtures thereof which are compatible with an N-substituted amido substituent and are known in the state of the art of polyphosphazene technology; and 200. The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as for molding, coatings, foams and the like.