基于可逆苯基硼酸 - 二醇酯键的pH和糖诱导形状记忆水凝胶
pH- and sugar-induced shape memory hydrogel based on reversible phenylboronic acid-diol ester bonds.
作者信息
Meng Hao, Zheng Jing, Wen Xiufang, Cai Zhiqi, Zhang Jiawei, Chen Tao
机构信息
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.
出版信息
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。
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