林业科学2012，Vol.48Issue(8)：123-128,6.
枞酸的热分解反应
Thermal Decomposition Reaction of Abietic Acid
摘要
Abstract
The decomposition reaction and mechanism of abietie acid with the purity 99.32% was tested by thermogravimetric analysis (TG) , differential scanning calorimetry (DSC) and thcrmogravimetric analyzer coupled to a quadrupole mass spectrometer( TG-MS) . The thermal decomposition activation energy of abietic acid at 20% (TG), 40% (TG) , 60% (TG) were 12.76, 12.96, 11.81 kJ·mol-1, respectively. The results of TG-MS showed that there are micromolecules, whose m/z are between 40 to 90 when decomposed after 362. 2 ℃ , which proved that the decomposition process of abietic acid is first off isopropyl, carboxyl, and then open-ring. The fusion heal, heat of gasification, heat capacity of solid state, liquid stale and phase change form solid to liquid were 49.3 J·g-1, 2 096.4 J·g-1, 1.469 J·g-1K-1 , 1. 163 J·g-1K-1 and 4.769 J·g-1K-1 , respectively.关键词
枞酸/热分析/热分解动力学/比热容Key words
abietic acid/ thermal analysis/ thermal decomposition kinetics/ heat capacity分类
化学化工引用本文复制引用
刘红军,谭卫红,周永红,张猛..枞酸的热分解反应[J].林业科学,2012,48(8):123-128,6.基金项目
国家“十二五”科技支撑项目 (2012BAD32B05). （2012BAD32B05）
