A new thermoresponsive self-healing polymer thermoset ((1.5M/F)DA-PDMS-PU) based on the Diels–Alder (DA) reaction between furan and maleimide groups was developed. The material exhibited glass temperature induced shape memory effect that brings crack faces into intimate contact, enabling the reformation of DA bridges located in the crack surfaces. In addition, the incorporation PDMS segments and excess maleimide functional groups besides DA bridges in the network promotes the mobility of dynamic groups and the healing reaction, therefore increasing the ability of the material to heal damages at a mild temperature. Scratch healing was possible via a one-step heating process at a moderate temperature of 60 °C for 4 h, reaching a tensile strength recovery of above 85%.

基于呋喃和马来酰亚胺基团之间的Diels-Alder（DA）反应，开发了一种新的热响应性自修复聚合物热固性塑料（（1.5M / F）DA-PDMS-PU）。该材料表现出玻璃温度诱导的形状记忆效应，使裂纹面紧密接触，从而可以重新形成位于裂纹表面的DA桥。此外，除了网络中的DA桥外，并入PDMS片段和过量的马来酰亚胺官能团还可以促进动态基团的迁移和修复反应，从而提高了材料在温和温度下修复损伤的能力。通过一步加热在60°C的中等温度下进行4个小时的划痕修复是可能的，拉伸强度恢复率可达到85％以上。