中文摘要：

利用热重-微分热重技术研究了二炔丙基双酚A醚聚合物（PDPEBA）在氮气气氛中的非等温热分解过程,探讨了聚合物在不同升温速率下的热分解机理,并采用2种模型法和5种非模型法对二炔丙基双酚A醚聚合物热分解动力学三因子（E、A、f（a））进行计算。结果表明,7种方法计算所得平均活化能及指前因子分别为E=176.30 k J/mol,lg A=10.43s-1;聚合物热分解阶段符合三维扩散机理,其对应的机理微分函数为f（α）=32（1-α）43×（1-α）-1[-3/1]-1,积分函数为g（α）=（1-α）-1[-3/1]2。

英文摘要：

Abstract： The non-isothermal thermal decomposition process of dipropargyl ether of bisphenol A polymer （DPEBA） was stud- ied with TG-DTG technology in nitrogen atmosphere, and the corresponding thermal decomposition mechanism was also discussed.At the same time, the kinetic parameters such as activation energy （E） , pre-exponential factor （A） and mechanism function were ob- tained according to two model methods and five model-free methods.The results attained by seven different methods show that the ac- tivation energy, the pre-exponential factor are about E = 176.30 kJ/mol, lgA = 10.43 s-1 respectively, the differential mechanism funcf（α）=32（1-α）43×（1-α）-1[-3/1]-1,the integral function g（α）=（1-α）-1[-3/1]2 ~ The thermal decomposition reactionmechanism follows the three-dimensional diffusion mechanism.