Although a wide range of self-healing materials have been reported by researchers, it is still a challenge to endow exceptional mechanical properties and shape memory characteristics simultaneously in a single material. Inspired by the structure of natural silk, herein, we have adopted a simple synthetic method to prepare a kind of elastomer (HM-PUs) with stiff, healable and shape memory capabilities assisted by multiple hydrogen bonds. The self-healing elastomer exhibits a maximum tensile strength of 39 MPa, toughness of 111.65 MJ m⁻³ and self-healing efficiency of 96%. Moreover, the recuperative efficiency of shape memory could reach 100%. The fundamental study of HM-PUs will facilitate the development of flexible electronics and medical materials.

中文翻译：

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基于多个氢键的具有形状记忆能力的可拉伸和可修复弹性体

尽管研究人员已经报道了多种自愈材料，但在单一材料中同时赋予卓越的机械性能和形状记忆特性仍然是一个挑战。受天然丝结构的启发，我们采用简单的合成方法制备了一种弹性体（HM-PUs），该弹性体在多个氢键的辅助下具有刚性、可愈合和形状记忆能力。自修复弹性体的最大抗拉强度为39 MPa，韧性为111.65 MJ m ^-3，自修复效率为96%。而且，形状记忆的恢复效率可以达到100%。HM-PU 的基础研究将促进柔性电子和医疗材料的发展。