【摘要】 采用热分析方法(TG,DTA)、热分解气相色谱和红外光谱等联合手段,对双酚A(2,2-双对羟基苯基丙烷)及两个二取代产物[2,2-二(4-羟基-3-硝基苯基)丙烷和2,2-二(3-氨基-4-羟基苯基)丙烷]的热稳定性和热分解反应动力学进行了研究,发现它们的稳定性和分解机理与取代基性质有关,建立了相应的动力学方程,并对其稳定性、热解机理从电荷分布出发进行了理论分析。更多还原

【Abstract】 Thermal stability and thermal decomposition kinetics of 4,4′-dihydroxydiphenyl propane,and its two derivatives——2,2-bis(4-hydroxy-3-nitrophenyl)propane and 2,2-bis(3-amido-4-hydroxyophenyl)propane were studied by means of DTA,TG,IR and thermal cracking gas chromatography.It was found that their thermal stability and decomposition mechanism were associated with the characteristics of their substituting group.Accordingly,the rate equation of thermal decomposition reaction was established,and the kinetic parameter of thermal decomposition was obtained.The decomposition mechanism and stability was theoretically discussed on the basis of charge distribution concepts.更多还原