[Macromol. Rapid. Commun.] A novel anisotropic hydrogel with integrated self-deformation and controllable shape memory effect
作者：XX Le, W Lu, JW Zhang*, YJ Huang, MJ. Serpe, XT, and Tao Chen*
关键字：Hydrogel, Actuator,
论文来源：期刊
具体来源：Macromol. Rapid. Commun., 2018, Inpress
发表时间：2018年
With the development of
shape memory polymers, temporary shapes created by simple manual deformation
could not meet many practical applications. Here, a novel controllable
self-driven hydrogel with shape memory effect is presented. Through
constructing an anisotropic poly(acrylic acid)-polyacrylamide (PAAc-PAAm)
structure, the obtained hydrogel exhibits stable self-driven behavior in
response to external pH trigger, and the shape deformed automatically could be
fixed by the coordination between carboxylic groups and Fe3+,
therefore, the integration of self-driven and shape memory behaviors could be
realized in one system. Moreover, the driving force and memorizing force could
be tuned by adjusting the concentration of corresponding ions, leading to
programmable shape memory and shape recovery processes.