Abstract
用3-硝基邻苯二甲酸、氢氧化钠和硝酸氧锆为原料, 制备了3-硝基邻苯二甲酸锆, 采用元素分析、X射线荧光衍射和FT-IR对其结构进行了表征. 用TG-DTG以及变温固相原位反应池/傅里叶变换红外光谱(RSFT-IR)联用技术研究了3-硝基邻苯二甲酸锆的热分解机理, 对主分解反应的DTG峰进行了数学处理, 计算得到了动力学参数和动力学方程. 结果表明, 3-硝基邻苯二甲酸锆的分解反应总共有4个阶段, 其中主分解反应发生在第2阶段, 主分解反应的表观活化能Ea与指前因子A分别为158.84 kJ·mol-1和10 9.85 s-1, 主分解阶段的反应机理服从一级Mample法则, 主分解反应的动力学方程为dα/dt=10 9.85 (1-α)e -1.91 ×10 4 /T.
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