A new type of stretchable poly(caprolactone)/graphene oxide (PCL/GO) aerogel with fast chemo‐responsive shape memory effect is fabricated by one‐step method of a sol‐gel procedure. The PCL/GO aerogels show uniformly circular and interconnected pores formed by twisted PCL nanolayers. GO platelets improve the crystallinity of PCL and increase the fracture stress and strain by 150% and 300% respectively, although the GO loading is only 0.5%. The dramatic increment of break strain is attributed to the uniform and circular pores that can afford large deformation and the interaction of GO and PCL. The aerogels can be programmed by external stress at ambient temperature without heating and recover upon ethyl acetate (EA) in 1 s. The fast chemo‐responsive shape recovery is ascribed to the fast wrinkle of the PCL nanolayers that decrease the diffusion time greatly and the interconnected micrometer pores that are in favor of penetrating for EA molecules.

中文翻译：

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一步法制备的可拉伸聚合物纳米复合气凝胶的快速化学响应形状记忆

通过溶胶-凝胶法一步法制备了一种新型的具有快速化学响应形状记忆效应的可拉伸聚己内酯/氧化石墨烯（PCL / GO）气凝胶。PCL / GO气凝胶显示出由扭曲的PCL纳米层形成的均匀圆形和相互连接的孔。GO血小板可改善PCL的结晶度，并将断裂应力和应变分别提高150％和300％，尽管GO加载量仅为0.5％。断裂应变的急剧增加归因于均匀且圆形的孔，可以提供较大的变形以及GO和PCL的相互作用。气凝胶可在不加热的情况下通过环境温度下的外部应力进行编程，并在1秒钟内在乙酸乙酯（EA）上恢复。