| 摘要 |
<p>Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: wherein X is represented by wherein R1 and R2 are independently selected from a group consisting of substituted or unsubstituted alkphatic, aryl, araryl, alkylaryl and heterocyclic radicals or R1 and R2 can be linked to form a cyclic radical and R3 is an aliphatic hydrocarbon radical or hydrogen, X' is a substituted or unsubstituted alkoxy, aryloxy, amino or mercapto substituent group or mixtures thereof which are compatible with an N-substituted amino substituent and are known in the state of the art of polyphosphazene technology; and 20 ? (w + y +z) ? 50,000 per polymer and (y + z) > 0. The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as molding, coatings, foams and the like.</p> |
