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Stretchable Multiresponsive Hydrogel with Actuatable, Shape Memory, and Self‐Healing Properties
Advanced Science ( IF 14.3 ) Pub Date : 2018-06-10 , DOI: 10.1002/advs.201800450 Feng Zhang 1 , Ligui Xiong 1 , Yongjian Ai 1 , Zhe Liang 1 , Qionglin Liang 1
Advanced Science ( IF 14.3 ) Pub Date : 2018-06-10 , DOI: 10.1002/advs.201800450 Feng Zhang 1 , Ligui Xiong 1 , Yongjian Ai 1 , Zhe Liang 1 , Qionglin Liang 1
Affiliation
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Smart hydrogels with responsive behaviors have attracted tremendous attention. However, it is still a challenge to synthesize stretchable hydrogels capable of changing their original properties in response to multiple external stimuli. Here, integration of actuation function, shape memory, and self‐healing capability in a highly stretchable hydrogel under triple external triggers is achieved by rationally engineering multiple functional moieties. The hydrogel exhibits high stretchability (average relative strain (mm/mm) is >15) and excellent fatigue resistance during 100 loading cycles of 100% strain. Incorporating a moisture‐insensitive polymer film with the hydrogel, hydroactuated functionality is demonstrated. Moreover, shape memory and self‐healing abilities of the hydrogel are realized by the formation of ionic crosslinking or dynamic borate ester in conditions of multivalent cations and pH, respectively. Deformable plastic flowers are displayed in this work as a proof‐of‐concept, and it is believed that this smart hydrogel could be used in plenty of frontier fields, such as designing electronic devices, soft robotics, and actuators.
中文翻译：
具有可驱动、形状记忆和自愈特性的可拉伸多响应水凝胶
具有响应行为的智能水凝胶引起了极大的关注。然而，合成能够响应多种外部刺激而改变其原始特性的可拉伸水凝胶仍然是一个挑战。在这里，通过合理设计多个功能部分，在三重外部触发下将驱动功能、形状记忆和自愈能力集成在高度可拉伸的水凝胶中。该水凝胶表现出高拉伸性（平均相对应变（mm/mm）>15）和100个100%应变加载循环期间优异的抗疲劳性。将湿气不敏感的聚合物薄膜与水凝胶相结合，证明了水驱动功能。此外，水凝胶的形状记忆和自修复能力分别是通过在多价阳离子和pH条件下形成离子交联或动态硼酸酯来实现的。这项工作中展示了可变形的塑料花作为概念验证，人们相信这种智能水凝胶可以用于许多前沿领域，例如设计电子设备、软机器人和执行器。
更新日期：2018-06-10
中文翻译：
具有可驱动、形状记忆和自愈特性的可拉伸多响应水凝胶
具有响应行为的智能水凝胶引起了极大的关注。然而，合成能够响应多种外部刺激而改变其原始特性的可拉伸水凝胶仍然是一个挑战。在这里，通过合理设计多个功能部分，在三重外部触发下将驱动功能、形状记忆和自愈能力集成在高度可拉伸的水凝胶中。该水凝胶表现出高拉伸性（平均相对应变（mm/mm）>15）和100个100%应变加载循环期间优异的抗疲劳性。将湿气不敏感的聚合物薄膜与水凝胶相结合，证明了水驱动功能。此外，水凝胶的形状记忆和自修复能力分别是通过在多价阳离子和pH条件下形成离子交联或动态硼酸酯来实现的。这项工作中展示了可变形的塑料花作为概念验证，人们相信这种智能水凝胶可以用于许多前沿领域，例如设计电子设备、软机器人和执行器。
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