ABSTRACT Three azido-terminated poly(ethylene glycol) macromonomers (ATPEGs) were synthesized from poly(ethylene glycol)s (PEGs) and characterized. The extended polytriazole (EPTA) resins were prepared from the macromonomers, azide and alkyne monomers. Toughening effect of PEGs on polytriazole resins was analyzed by means of mechanical, thermal and electronic microscope characterization. The results show that molecular weight and content of ATPEGs have great influence on the thermal and mechanical properties of cured EPTA resins. The impact strength of cured EPTA resins increases with the increase of the amount and molecular weight of ATPEGs. The flexural strength and heat resistance of cured EPTA resins decrease with the increase of addition amount and molecular weight of ATPEGs. High impact EPTA resins were obtained.

中文翻译：

---

用于先进复合材料的高抗冲聚三唑树脂

摘要三种叠氮基封端的聚（乙二醇）大分子单体（ATPEG）由聚（乙二醇）（PEG）合成并表征。扩展的聚三唑 (EPTA) 树脂由大分子单体、叠氮化物和炔烃单体制备。通过机械、热学和电子显微镜表征分析了 PEG 对聚三唑树脂的增韧作用。结果表明，ATPEGs的分子量和含量对EPTA树脂固化后的热力学性能有很大影响。固化的 EPTA 树脂的冲击强度随着 ATPEG 用量和分子量的增加而增加。固化后的EPTA树脂的弯曲强度和耐热性随着ATPEGs添加量和分子量的增加而降低。获得了高抗冲EPTA树脂。