热致液晶共聚酯60PHB/PEN的热降解动力学研究--(Ⅰ) 非等温热降解动力学

1.化学纤维改性及聚合物材料国家重点实验室,东华大学,上海,200051

2.化学纤维改性及聚合物材料国家重点实验室,东华大学,上海,200051

3.化学纤维改性及聚合物材料国家重点实验室,东华大学,上海,200051

4.光谱学仪波谱学教育部重点实验室,华东师范大学,上海,200052

KINETICS OF THERMAL DEGRADATION OF THERMOTROPIC POLY(p-OXYBENZOATE-co-ETHYLENE 2,6-NAPHTHALATE) BY SINGLE HEATING RATE METHODS

在氮气氛中采用热重分析的方法对热致液晶共聚酯60PHB/PEN的热降解动力学进行了研究.采用Friedman和Chang两种单一加热速率方法对活化能Ea、反应级数n和频率因子Z等降解反应动力学参数进行了分析.讨论了加热速率和计算方法对热稳定性及降解动力学参数的影响.

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