Abstract: Tri-propargyl isocyanurate (TPIC)was synthesized using isocyanurate and propargyl bromide by phase transfer catalyst reaction.The chemical structure of TPIC was characterized by FT-IR, ¹H NMR. The analysis of TGA curve referred to the cured TPIC displayed that the preliminary thermal decomposition temperature of cured TPIC was about 375℃ and the char yield was 75% at 800℃.According to DSC curves used to investigate the thermal curing behavior of TPIC, the curing kinetic parameters were calculated by several thermo analysis methods, respectively, such as Kissinger, Flynn-Wall-Ozawa and Friedman-Reich-Levi, and the apparent activation energy was 46.81, 48.70 and 40.92 kJ·mol^-1 respectively. The order of curing reaction obtained by the three methods all approached 1 and the mechanism was further discussed.Based on comparative analysis of the above three methods, they all can properly simulate the thermal curing process of TPIC.

Key words: propargyl, isocyanurate, phase transfer catalyst reaction, curing kinetics

摘要： 以3-溴丙炔、异氰尿酸为原料,利用相转移催化剂合成了三炔丙基异氰尿酸酯(TPIC)，并用FT-IR、¹H NMR对其结构进行了表征。用TGA表征了热固化后的TPIC的热性能。结果表明：热固化后的树脂在375℃开始分解，800℃的残炭率达75%。根据DSC曲线，TPIC的熔点为167℃左右，并用Kissinger、Flynn-Wall-Ozawa和Friedman-Reich-Levi法分别计算了热固化反应活化能，它们分别为46.81、48.70和40.92 kJ·mol^-1，热固化反应级数都接近1，并探讨了固化反应过程与机理。通过对比分析表明，这3种方法均适用于TPIC体系。

关键词:  , 溴丙炔；异氰尿酸；相转移催化反应；固化动力学