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用溶液法制备了β-CD与1-MCP的包结物,并借助于热分析和X射线粉末衍射法证实了包结物的存在,采用Satava-Sestak法,并结合Ozawa法和Kissinger法,推断出可能的热分解反应机理,获得了热分解反应的动力学参数。结果表明：β-CD与1-MCP包结物热分解反应在170～180℃出现失重,其机理为一维随机成核和随后生长反应,反应机理函数为2／3级反应,其降解反应的活化能为102.14 kJ／mol,指前因子值为3.63×10~(10)s~(-1)。较低的表观活化能说明了β-CD与1-MCP之间没有形成强烈的化学键。
The inclusions of β-CD and 1-MCP were prepared by solution method. The inclusion complex was confirmed by means of thermal analysis and X-ray powder diffraction. Satava-Sestak method was used in combination with Ozawa method and Kissinger method. The possible mechanism of thermal decomposition was deduced and the kinetic parameters of thermal decomposition reaction were obtained. The results showed that the thermal decomposition reaction of β-CD and 1-MCP entrapment occurred at 170-180 ℃, and its mechanism was one-dimensional random nucleation and subsequent growth reaction. The reaction mechanism function was 2/3 reaction, and its degradation reaction The activation energy is 102.14 kJ / mol and the pre-exponential factor is 3.63 × 10 ~ (10) s ~ (-1). The lower apparent activation energy indicates that there is no strong chemical bond between β-CD and 1-MCP.