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对 Cu[2 - (COO) C6H4 CONH- 2 - C6H4 Cl]2 配合物的热重数据运用 Zsako法、Coats和 Redfern法、Mac Callum和 Tammer法进行了计算。用 3种方法计算的每一反应的表观分解活化能 Ea、频率因子 A、活化熵 ΔS≠m 值分别十分接近 ,两个热分解反应的反应级数均为二级 ,并对反应机理进行了探讨 ,第一个反应为 A3机制 ,服从动力学方程 Avrami方程 II:[- ln(1 -α) ]1/3=kt;第二个反应为 A2 机制 ,服从动力学方程 Avrami方程 I:[- ln(1 - α) ]1/2 =kt,速控步骤均为随机核化。
The thermogravimetry data of Cu [2- (COO) C6H4CONH- 2 - C6H4Cl] 2 complexes were calculated using the Zsako method, Coats and Redfern methods, Mac Callum and Tammer methods. The apparent decomposition activation energy Ea, frequency factor A and activation entropy ΔS ≠ m of each reaction calculated by the three methods are very close to each other, and the reaction orders of the two thermal decomposition reactions are all in second order. The reaction mechanism The first reaction is the A3 mechanism, which obeys the kinetic equation Avrami equation II: [- ln (1 -α)] 1/3 = kt; the second one is the A2 mechanism, which obeys the kinetic equation Avrami equation I: [- ln (1 - α)] 1/2 = kt, the speed control steps are randomized nucleation.