Yangling Li1, Zhengrong Li1, Hui Yu1, Gang Huang1, Xiaopeng Pei2, Kun Xu2,*, Pixin Wang2, Ying Tan3,*
Journal of Renewable Materials, Vol.9, No.8, pp. 1365-1376, 2021, DOI:10.32604/jrm.2021.014909
Abstract In this work, the –catechol and –thiol modified starch was prepared by the esterification and amino condensation
reaction, then a fully starch based hydrogel was prepared via the thiol-catechol Michael addition reaction. The
starch hydrogel gained shape memory behaviors by coordinate with Fe3+ ions at alkaline condition. 1
H-NMR
had been used to character the structure of the starch derivatives and its character peaks. The hydrogel’s modulus
had also been measured before and after coordinating with Fe3+ ions in linear area and the result showed that
both the hydrogel’s storage modulus and loss modulus kept constant in linear area from… More >
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