Fe3+-, pH-, Thermoresponsive Supramolecular Hydrogel with Multishape Memory Effect.
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.
['Le|Xiaoxia|X|', 'Lu|Wei|W|', 'Xiao|He|H|', 'Wang|Li|L|', 'Ma|Chunxin|C|', 'Zhang|Jiawei|J|http://orcid.org/0000-0002-3182-9239', 'Huang|Youju|Y|http://orcid.org/0000-0001-5815-9784', 'Chen|Tao|T|http://orcid.org/0000-0001-9704-9545']
supramolecular hydrogel multishape memory effect tunable mechanical properties multiresponsive reversible switches