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首页> 外文期刊>Journal of Applied Polymer Science >Novel Propargylether-Terminated Monomers Containing Pyridine and Phenyl Pendent Group: Synthesis, Cure, and Properties
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Novel Propargylether-Terminated Monomers Containing Pyridine and Phenyl Pendent Group: Synthesis, Cure, and Properties

机译：含吡啶和苯基侧基的新型炔丙基醚封端的单体：合成，固化和性能。

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摘要

Two novel propargylether-terminated resins containing pyridine and bulky phenyl pendent group were prepared from propargyl bromide and different diphenols, and highly thermal stable polymers were obtained by the thermal cure of the monomers. The chemical structures of these novel monomers were well confirmed by FTIR, ~1H-NMR and elemental analysis. Curing and thermal behavior of the resins were investigated using differential scanning calorimetry (DSC) and dynamic thermogravimetry in argon atmosphere. DSC curves of these two monomers showed a single endothermic peak corresponding to the conformation of chromene ring and homopolymerization of the chromene ring. The temperature at 5% weight loss (T_(d5)) was higher than 440℃ under argon and the highest glass transition temperature (T_g) reached 362℃. The rheological behavior and solubility of the monomer were also investigated. The monomers showed excellent flow-ability, broad processing window, and great solubility. These results showed that the two resins could be ideal candidates for high-temperature resistant resins.
机译：用炔丙基溴和不同的二酚制备了两种新型的带有吡啶和大苯基侧基的炔丙基醚封端的树脂，通过单体的热固化获得了高热稳定性的聚合物。 FTIR，〜1H-NMR和元素分析已很好地证实了这些新型单体的化学结构。使用差示扫描量热法（DSC）和动态热重分析法在氩气中研究了树脂的固化和热行为。这两种单体的DSC曲线显示出一个单独的吸热峰，其对应于色烯环的构型和色烯环的均聚。在氩气下，失重5％时的温度（T_（d5））高于440℃，最高玻璃化转变温度（T_g）达到362℃。还研究了单体的流变行为和溶解性。单体显示出优异的流动性，宽阔的加工窗口和高溶解度。这些结果表明，这两种树脂可能是耐高温树脂的理想选择。

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