title: pH- and sugar-induced shape memory hydrogel based on reversible phenylboronic acid-diol ester bonds.
abstract: 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.
authors: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China; Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Science, Ningbo, 315201, China.
authors: Hao
authors: H
authors: Meng
authors: Jing
authors: J
authors: Zheng
authors: Xiufang
authors: X
authors: Wen
authors: Zhiqi
authors: Z
authors: Cai
authors: Jiawei
authors: J
authors: Zhang
authors: Tao
authors: T
authors: Chen
mesh_terms: D001897:Boronic Acids / Q000737:chemistry*; D004952:Esters / Q000737:chemistry*; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D009005:Monosaccharides / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D001897:Boronic Acids; D004952:Esters; D009005:Monosaccharides; D011108:Polymers; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; C010686:benzeneboronic acid
keywords: pH responsive; phenylboronic acid-diol ester bonds; shape memory; sugar responsive