Meng Hao, Zheng Jing, Wen Xiufang, Cai Zhiqi, Zhang Jiawei, Chen Tao
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.
Macromol Rapid Commun. 2015 Mar;36(6):533-7. doi: 10.1002/marc.201400648. Epub 2015 Jan 29.
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.
提供了一种简单的策略，以构建一种新型的基于pH值和糖诱导的形状记忆水凝胶，该水凝胶基于由硼酸苯酯（PBA）修饰的海藻酸钠（Alg-PBA）和聚乙烯醇（PVA）形成的动态硼酸苯酯（PBA）-二醇相互作用。动态PBA-二醇酯键作为临时交联键，稳定水凝胶的变形形状。在酸性条件以及葡萄糖和果糖的水溶液中探索了PBA-二醇酯键的解离，这赋予了水凝胶形状记忆性能。
