Photo-adaptable shape memory hydrogels based on orthogonal supramolecular interactions
writer：Manqing Xie, Chen Wu, Chongyi Chen, Ying Liu and Chuanzhuang Zhao
keywords：Shape memory polymer; host-guest interaction; intelligent hydrogel
source：期刊
specific source：Polymer Chemistry
Issue time：2019年
A novel shape memory hydrogel with photo-adaptable permanent shape has been developed on the basis of alginate-Ca2+ coordination and the host–guest interaction between α-cyclodextrin and azobenzene. The reversible nature of alginate-Ca2+ confers the hydrogel with functions such as shape memory and shape recovery, and the light-responsive transition of azobenzene could be applied to generate a new permanent shape by tuning the host–guest complexation via UV light.