Author(s): DU Lingyunlilinweisundezhizhaoyuefen(schoolofchemistryandchemicaltechnology, LIAOCHENG University, LIAOCHENG 252059, china)
Pages: 33-35
Year: 2005 Issue:  2
Journal: Journal of Liaocheng Teachers University(Natural S
Keyword:  利君沙;  热重分析;  动力学参数;
Abstract: 利用热重分析在氮气气氛下对药物利君沙的热失重行为进行了研究.运用四种不同的动力学方程即Coats-Redfern法、Madhusudhanan-Krishnan-Ninan(MKN)法、Kissinger法和Doyle法求算出利君沙第二步热分解反应的动力学参数.结果表明:利君沙第二步热分解反应为一级反应过程,其表观活化能为174.3±7.74kJ·mol-1,频率因子lnA为35.25s-1.