Conductive flexible hydrogels have attracted immense attentions recently due to their wide applications in wearable sensors. However, the poor mechanical properties of most conductive polymer limit their utilizations. Herein, a double network hydrogel is fabricated via a self‐sorting process with cationic polyacrylamide as the first flexible network and the lantern[33]arene‐based hydrogen organic framework nanofibers as the second rigid network. This hydrogel is endowed with good conductivity (0.25 S m−1) and mechanical properties, such as large Young's modulus (31.9 MPa), fracture elongation (487%) and toughness (6.97 MJ m−3). The stretchability of this hydrogel is greatly improved after the kirigami cutting, which makes it can be used as flexible strain sensor for monitoring human motions, such as bending of fingers, wrist and elbows. This study not only provides a valuable strategy for the construction of double network hydrogels by lanternarene, but also expands the application of the macrocycle hydrogels to flexible electronics.

中文翻译：

---

用于柔性应变传感器的基于灯笼烯的自排序双网络水凝胶


导电柔性水凝胶最近因其在可穿戴传感器中的广泛应用而引起了极大的关注。然而，大多数导电聚合物较差的机械性能限制了它们的应用。在此，通过自分类过程制备了双网络水凝胶，其中阳离子聚丙烯酰胺作为第一个柔性网络，灯笼[33]芳烃基氢有机骨架纳米纤维作为第二个刚性网络。这种水凝胶具有良好的导电性（0.25 S m−1）和机械性能，如大杨氏模量（31.9 MPa）、断裂伸长率（487%）和韧性（6.97 MJ m−3）。这种水凝胶经过剪纸切割后，其拉伸性大大提高，这使得它可以用作柔性应变传感器，用于监测人体运动，例如手指、手腕和肘部的弯曲。该研究不仅为灯笼芳烃构建双网络水凝胶提供了有价值的策略，而且拓展了大环水凝胶在柔性电子器件中的应用。