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对-叔丁基杯[4]芳烃对聚丙烯热氧稳定性的影响及其动力学研究
Effects of p-tert-Butylcalix[4]arene on Thermal Oxidation Stability of Polypropylene and Study of Its Kinetics
【摘要】 制备了对叔丁基杯 [4 ]芳烃和聚丙烯共混体系 ,用热重法研究了对叔丁基杯 [4 ]芳烃对聚丙烯热氧稳定性的影响 .用 Coats-Redfern方程进行动力学处理 ,确定对叔丁基杯 [4 ]芳烃和聚丙烯共混体系的热氧降解的表观反应级数为 1 .4 1 3 ,表观活化能为 1 54.899k J/mol
【Abstract】 The p tert butyl calix[4]arene and polypropylene blend was prepared, and effects of p tert butyl calix[4]arene on the thermal oxidation stability of polypropylene blend were studied by means of thermal gravimetric analysis (TGA).Treated with Coasts Redfern equation we found that the apparent degradation reaction order of the p tert butyl calix[4]arene and polypropylene blend is 1.413 and the activation energy of degradation reaction is 154.899 kJ/mol.
【关键词】 杯芳烃;
合成;
动力学;
聚丙烯;
热重法;
【Key words】 Calixarene; Synthesis; Kinetics; Polypropylene; Thermal gravimetric analysis;
【Key words】 Calixarene; Synthesis; Kinetics; Polypropylene; Thermal gravimetric analysis;
【基金】 国家教育部优秀青年教师基金 !(批准号 :D1970 0 1)资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2001年03期
- 【分类号】O631
- 【被引频次】6
- 【下载频次】101