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用热重 TG和 DSC对杯芳烃对 -叔丁基杯 [4 ]热分解过程进行了研究 ,用多升温速率法和单升温速率法相结合的方法推断出了对 -叔丁基杯 [4 ]热分解的可能过程 ,并推断出了其可能的裂解反应动力学方程及热分析动力学参数 ;得出了结论 :脱包结甲苯的过程为 2 3号机理函数 ,为三级反应过程 ,动力学方程为 dα/ dt=Ae- ERT 12 (1-α) 3;;表观活化能 E为 16 6 .97k J· m ol- 1 ,指前因子 A为 1.6 7× 10 1 6 s- 1 ;自身热分解脱去叔丁基的过程为 1号机理函数 ,反应过程为一维扩散 ,动力学方程为 dα/ dt=Ae- ERT 12 α;活化能 E为 2 4 8.89k J· m ol- 1 ,指前因子 A为4 2 .89s- 1 .
The thermal decomposition of p-tert-butylcalix [4] was studied by TG and DSC, and the p-tert-butylcalix [4] was deduced by a combination of multi-heating and single- Thermal decomposition possible process, and deduced its possible kinetic equation of pyrolysis reaction and thermal analysis kinetic parameters; concluded that the process of toluene off the package for the 23 mechanism function, for the three reaction process, power The equation of the equation is: dα / dt = Ae-ERT 12 (1-α) 3; The apparent activation energy E is 16.697 kJ · m ol-1 and the pre-exponential factor A is 1.6 7 × 10 16 s -1 ; The process of removing t-butyl group by thermal decomposition is mechanism 1, the reaction process is one-dimensional diffusion, the kinetic equation is dα / dt = Ae-ERT 12 α; the activation energy E is 24.89k J · m ol - 1, the pre-factor A is 4 2 .89s-1.