【摘要】 利用静态溶剂吸附法测试含氮量为 12 .5 %的硝化棉和丙烯腈基团含量不同的丁腈橡胶的各种混合体系 Gibbs自由能。分析结果表明 :随着橡胶中丙烯腈比例增大 ,这两种高聚物共容区逐渐扩大 ,当橡胶中丙烯腈基团含量达到 40 %时二者完全相容。更多还原

【Abstract】 By use of the data on the statistical sorption of solvent vapor,the Gibbs free energies of mixing of cellulose nitrate and nitrile-butadiene rubbers with various contents of acrylonitrile groups were calculated.It was shown that increasing fraction of polar groups in the rubber extended the range of compatibility of these polymers,until at 40% acryonitrile the components became completely compatible.更多还原