通过热重分析法研究了含有功能单体AAEM(乙酰乙酸基甲基丙烯酸乙酯)的丙烯酸树脂-壳聚糖交联复合涂膜的热分解反应.结果表明,该复合涂膜的热分解过程表现为两个台阶：第1台阶分解温度区间为199．4~349．0℃；第2台阶分解温度区间为323．9~450．7℃,该分解区间出现最大分解速率,而且分解速率随着升温速率的提高而提高.通过Kissinger法和 Ozawa 法计算复合涂膜的热分解表观活化能E 分别为119．19和123．05 kJ/mol.该复合涂膜热分解反应可分为3个阶段：第1阶段的转化率＜25％；第2阶段的转化率为25％~45％；第3阶段的转化率＞45％.在反应初期为化学反应机制,最可几机理函数为C5,反应级数n为5；在反应后期则变为扩散反应机制,最可几机理函数为D6；反应中期则为过渡阶段.
The thermal decomposition of Acrylic-chitosan resin containing a functional monomer named AAEM was studied by TG-DTG.The results show that the thermal decomposition curve expresses as two steps:the first step of decomposition temperature range is about 199.4-349.0 ℃;the second step of decomposition temper-ature range is about 323.9-450.787 ℃ where the maximun decomposition rate occurs,the decomposition rate in-creases with the increasing of heating rate during in this stage .The thermal decomposition apparent activation energy (E)is 119.193 kJ/mol by Kissinger equation and 123.049 kJ/mol by Ozawa equation.The thermal de-composition of Acrylic-chitosan resin containing a functional monomer named AAEM can be divided into three stages.The conversion rate of the first stage is 10%-25%,the conversion rate of the second stage is about 25%-45%,and the third stage is about 45%-90%.The initial stage of reaction is chemical mechanism in which the most probable kinetic mechanism function is C5 suggested by coats-redfern method and the reaction order is 5 . The final reaction becomes diffusion reaction where the most probable kinetic mechanism function is D6 .The medium reaction is transition stage.
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