Aromatic thermoset materials have shown great potential applications in various fields owing to their excellent mechanical strengths. However, their poor ductility is still hinders their large-scale applications. In this study, a new class of aromatic thermosets consisting of two types of crosslinks was successfully developed by incorporating the special group imidazole into a type of crosslinked thermoset. One crosslink is constituted of reversible multiple noncovalent interactions containing “face-face” π–π stacking, “point-point” hydrogen bonds, and ion-pair electrostatic interactions, whereas the other is composed of permanent covalent bonds. Most importantly, the synergetic interplay among these reversible multiple noncovalent interactions enables them to evade the restrictions from the aromatic polymer skeletons to proceed with their dynamic dissociating-rebuilding processes, which can timely and effectively dissipate the internal stress. Finally, owing to the coefficient of these two types of crosslinks, a significantly enhanced ductility was successfully obtained on these aromatic thermosets and their tensile strengths were also improved. Such thermosets having simultaneously enhanced strengths and ductility are predicted to be eventually used in a wide range of applications.

芳香族热固性材料由于其优异的机械强度而在各种领域中显示出巨大的潜在应用。但是，它们的延展性差仍然阻碍了它们的大规模应用。在这项研究中，通过将特殊的咪唑基团掺入一种交联的热固性塑料中，成功开发了由两种交联类型组成的新型芳香族热固性塑料。一个交联是由多个可逆的非共价相互作用构成的，包含“面-面”π-π堆积，“点对点”氢键和离子对静电相互作用，而另一个则由永久性共价键组成。最重要的是，这些可逆的多个非共价相互作用之间的协同相互作用使他们能够摆脱芳香族聚合物骨架的限制，继续进行动态解离-重建过程，从而可以及时有效地消除内应力。最后，由于这两种交联的系数，在这些芳族热固性材料上成功地获得了显着增强的延展性，并且它们的拉伸强度也得到了改善。预计具有同时增强的强度和延展性的这种热固性材料最终将在广泛的应用中使用。在这些芳族热固性材料上成功地获得了显着增强的延展性，并且它们的拉伸强度也得到了改善。预计具有同时增强的强度和延展性的这种热固性材料最终将在广泛的应用中使用。在这些芳族热固性材料上成功地获得了显着增强的延展性，并且它们的拉伸强度也得到了改善。预计具有同时增强的强度和延展性的这种热固性材料最终将在广泛的应用中使用。