Solvents within gels enhance the mobility of polymer chain segments while concurrently diminishing interchain interactions, thereby facilitating the ductility of glassy polymers at the cost of their mechanical strength. Here, we develop a solvent toughening strategy for the preparation of highly compressible and high-strength ionogels in the glassy state. This approach leverages the synergistic effects of the slow dissociation-shift kinetics of solvent ionic liquids and polymer crystallization. Ionogels exhibit an ultimate compressive stress of 2.3 GPa (at 98% compressive strain), toughness of 1219.3 MJ m −3 , and energy dissipation rate of 81.9% (at 70% compression strain). The highly interacting ionic bonds of solvent and the fast crystallization of polymers under load toughen the ionogels and confer impact hardening and efficient energy dissipation behavior under fast impact. A 500-μm-thick ionogel coating can protect fragile items, such as glass, from impact damage. Ionogels, renowned for their impact resistance, hold promise for various applications across industries including human body implants, equipment, transportation, and aerospace.

中文翻译：

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具有高压缩性和强度的玻璃状离子凝胶，用于冲击保护


凝胶中的溶剂增强了聚合物链段的流动性，同时减少了链间相互作用，从而以牺牲其机械强度为代价促进了玻璃状聚合物的延展性。在这里，我们开发了一种溶剂增韧策略，用于制备玻璃态的高可压缩性和高强度离子凝胶。这种方法利用了溶剂离子液体和聚合物结晶的缓慢解离-转变动力学的协同效应。离子凝胶的极限压应力为 2.3 GPa（压缩应变为 98%），韧性为 1219.3 MJ m -3，能量耗散率为 81.9%（压缩应变为 70%）。溶剂的高度相互作用离子键和聚合物在负载下的快速结晶使离子凝胶变韧，并在快速冲击下赋予冲击硬化和有效的能量耗散行为。500 μm 厚的 ionogel 涂层可以保护玻璃等易碎物品免受冲击损坏。Ionogels 以其抗冲击性而闻名，有望应用于各种行业，包括人体植入物、设备、运输和航空航天。