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    • 2. 发明授权
    • Polyphosphazene copolymers containing malononitrile and _substituted
malononitrile substituents
    • 含有丙二腈和取代的丙二腈取代基的聚磷腈共聚物
    • US4180647A
    • 1979-12-25
    • US941117
    • 1978-09-08
    • William J. HergenrotherAdel F. Halasa
    • William J. HergenrotherAdel F. Halasa
    • C08G79/02C08G79/06
    • C08G79/025
    • 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.
    • 其中X为-CR(CN)2,其中R为H,含有1至12个碳原子的支链,直链或环状烷基,由下式表示的某些随机分布的单元制备聚磷腈共聚物: 或芳基或其混合物,并且其中X'选自取代和未取代的烷氧基,烯氧基,芳氧基,烯基芳氧基,氨基和巯基或其混合物。 在由上式表示的共聚物单元中,所有X取代基可以相同或可以混合,并且所有X'取代基可以相同或混合。 在该混合物中,X取代基可以是不同的-CR(CN)2基团的混合物,X'取代基可以是烷氧基,烯氧基,芳氧基,烯基芳氧基,氨基和巯基的混合物或各组中的混合物。 本发明的共聚物可用于形成保护膜,也可用于诸如其中热稳定性和耐溶剂性重要的模制品,涂料等应用。