| 摘要 |
Novel polyphosphazene copo)ymers are prepared which contain units represented by the formulas:
<CHEM>
wherein X is -O-NR2 in which R is selected from the group consisting of alkyl groups containing from 1 to 8 carbon atoms, and cycloalkyl groups containing from 3 to 12 ring carbon atoms; and wherein X min is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups.
<??>The polymers are prepared by reacting a poly(dichlorophosphazene) of formula -(NPCl2)n-, wherein n is from 20 to 50,000 with a hydroxylamine of formula R2N-OH, R being C1-8-alkyl or C3-12-cycloalkyl and an alcohol, a phenol, an amine or a mercaptan in the presence of a tertiary amine.
<??>The polymers of the invention can be utilized to form films and may also be utilized in applications such as moldings, coatings and the like. |
