中文摘要：

脱氢枞酸又称去氢枞酸或脱氢松香酸，是歧化松香的主要化学成分。由于脱氢枞酸化学结构中存在多个手性中心和共轭双键，是一种含有苯环的三环二萜类化合物，具有抗菌、抗病毒、抗肿瘤和抗溃疡等多种生物活性，还可以对其分子结构的羧基、芳环进行改性，或通过某些微生物或细菌催化转化脱氢枞酸合成多种具有生物活性的化合物，

英文摘要：

The thermal decomposition kinetics of dehydroabietic acid in static state air was investigated by TG/DTA/DSC techniques with various heating rates of 5, 10, 15 and 20 K·min^-1. TG/ DTA curves showed that decomposition proceeded through a well-defined step in air. The melting point, molar enthalpy and entropy of fusion of dehydroabietic acid were determined as 445.05 K, 19.74 kJ · mol^-1 and 44. 35 J· mol^-1· K^-1, by differential scanning calorimetry （DSC） . The non-isothermal kinetics parameters were analyzed by means of the Kissinger and Flynn-Wall-Ozawa methods, and the thermal decomposition mechanism of dehydroabietic acid was also studied with the Satava-Sestak method. The results showed that the thermal decomposition mechanism of dehydroabietic acid in air was controlled by interface reaction R3, and the apparent activation energy and pre-exponential factor were 107.89 kJ·mol^-1 and 9.33 × 10^8 s^-1 , respectively.