为研究磺化碱木质素在高温条件下的热稳定性能，实验采用热重－红外分析(TG-IR)和差示扫描量热分析(DSC) 研究了磺化麦草碱木质素在非氧状态下热分解反应的动力学过程。利用多升温速率法Kissingr法和Ozawa法，分别计算了磺化麦草碱木质素热动力学方程中的表观活化能(Ｅ)和频率因子lnA，分别为118.3 kJ•mol-1、121.46 kJ•mol-1；20.40min-1、15.92min-1；利用Kissingr法计算了热动力学方程的反应级数是1.8。

The thermal decomposition process of sulfonated wheat- strew soda lignin at the none-oxygen state was studied, using TG-IR and Non-isothermal Differential Scanning Calorimetry (DSC). The Kissinger and Ozawa equation kinetic parameters of the thermal decomposition were obtained. The apparent activation energy Ea, and pre-exponential factor, lnA, are 118.3 kJ•mol-1, 121.46 kJ•mol-1; 20.40min-1, 15.92min-1; respectively. The reaction order of the process is 1.8 by using Kissinger method.