Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 36, Issue 6, Pages 533-537Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201400648
Keywords
shape memory; phenylboronic acid-diol ester bonds; pH responsive; sugar responsive
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Funding
- National Natural Science Foundation of China [21304105, 51303195]
- Chinese Academy of Science for Hundred Talents Program
- Chinese Central Government for Thousand Young Talents Program
- Ningbo Science and Technology Bureau [2014B82010]
- Excellent Youth Foundation of Zhejiang Province of China [LR14B040001]
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A simple strategy is provided to construct a novel pH- and sugar-induced shape memory hydrogel based on dynamic phenylboronic acid (PBA)-diol interactions formed by PBA-modified sodium alginate (Alg-PBA) and poly(vinyl alcohol) (PVA). The dynamic PBA-diol ester bonds serve as temporary cross-links and stabilize the deformed shape of the hydrogel. The disassociation of the PBA-diol ester bonds is explored in acidic conditions and aqueous solutions of glucose and fructose, which endow the hydrogel with shape memory performances.
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