期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 10, 页码 9038-9044出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b00169
关键词
multiresponsive; multishape memory effect; tunable mechanical properties; supramolecular hydrogel; reversible switches
资金
- National Natural Science Foundation of China [21644009]
- Natural science foundation of Zhejiang [LY17B040003, LY17B040004]
- Key Research Program of Frontier Science, Chinese Academy of Sciences [QYZDB-SSW-SLH036]
- Ningbo Science and Technology Bureau [2016C50009]
- China Postdoctoral Science Foundation [2016M590556]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2017337, 2016268]
Poor, nontunable mechanical properties as well as finite shape memory performance pose a barrier to shape memory hydrogels to realize practical applications. Here, a new shape memory hydrogel with tunable mechanical properties and multishape memory effect was presented. Three programmable reversible systems including PBA-diol ester bonds, AAc-Fe3+, and coil helix transition of agar were applied to memorize temporary shapes and endow the hydrogel with outstanding multishape memory functionalities. Moreover, through changing the cross-linking densities, the mechanical properties of the as-prepared hydrogel can be adjusted.
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