Strong, self‐healable, and recyclable visible‐light‐responsive hydrogel actuators

Z Jiang, ML Tan, M Taheri, Q Yan, T Tsuzuki… - Angewandte …, 2020 - Wiley Online Library
Z Jiang, ML Tan, M Taheri, Q Yan, T Tsuzuki, MG Gardiner, B Diggle, LA Connal
Angewandte Chemie, 2020Wiley Online Library
The most pressing challenges for light‐driven hydrogel actuators include reliance on UV
light, slow response, poor mechanical properties, and limited functionalities. Now, a
supramolecular design strategy is used to address these issues. Key is the use of a
benzylimine‐functionalized anthracene group, which red‐shifts the absorption into the
visible region and also stabilizes the supramolecular network through π–π interactions. Acid–
ether hydrogen bonds are incorporated for energy dissipation under mechanical …
Abstract
The most pressing challenges for light‐driven hydrogel actuators include reliance on UV light, slow response, poor mechanical properties, and limited functionalities. Now, a supramolecular design strategy is used to address these issues. Key is the use of a benzylimine‐functionalized anthracene group, which red‐shifts the absorption into the visible region and also stabilizes the supramolecular network through π–π interactions. Acid–ether hydrogen bonds are incorporated for energy dissipation under mechanical deformation and maintaining hydrophilicity of the network. This double‐crosslinked supramolecular hydrogel developed via a simple synthesis exhibits a unique combination of high strength, rapid self‐healing, and fast visible‐light‐driven shape morphing both in the wet and dry state. As all of the interactions are dynamic, the design enables the structures to be recycled and reprogrammed into different 3D objects.
Wiley Online Library
以上显示的是最相近的搜索结果。 查看全部搜索结果