The present work represents the synthesis of five new s-triazine based Schiff base polymers via condensation polymerization process between bishydrazino-s-triazine derivatives and terephtaldehyde. The prepared polymers were characterized by different techniques (FTIR, UV-Vis, TGA, XRD and DSC). The new polymers showed good thermal properties and good values for the Limited Oxygen Indexed (LOI) 22.74, 27.36, 30.52, 24.38, 21.39 for polymers 5a-e; TP-DHBT, TP-DHMBT, TP-DHMT, TP-DHPT, and TP-DHMeT, respectively. Accordingly, these types of polymers could be classified as flame-retardant and self-extinguishing polymers. The T_g values of the polymers 5a-e varied in the range from 191.4 to 241.1. The effect of substituent in the triazine ring has great impact on the properties of the polymers 5a-e as observed from the DSC and XRD results. Moreover, the thermal degradation kinetics of two selected polymers with higher thermal stability (5b and 5c) from the prepared series was studied using the method of Friedman. The behavior of activation energy is found to be highly dependent on the polymer molecular structure.

本工作代表了通过在双肼基-s-三嗪衍生物和对苯甲醛之间的缩聚反应合成了五种新的基于s-三嗪的席夫碱聚合物。所制备的聚合物通过不同的技术（FTIR，UV-Vis，TGA，XRD和DSC）进行表征。对于聚合物5a-e，新聚合物显示出良好的热性能和良好的极限氧指数（LOI）22.74、27.36、30.52、24.38、21.39 。TP-DHBT，TP-DHMBT，TP-DHMT，TP-DHPT和TP-DHMeT。因此，这些类型的聚合物可分类为阻燃和自熄性聚合物。聚合物5a-e的T _g值范围从191.4到241.1。从DSC和XRD结果观察，三嗪环中取代基的作用对聚合物5a-e的性质有很大影响。此外，使用弗里德曼的方法研究了所选择的两种具有较高热稳定性的聚合物（5b和5c）的热降解动力学。发现活化能的行为高度依赖于聚合物分子结构。