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投稿时间：2012-07-16
投稿时间：2012-07-16
中文摘要: 以黄酮类化合物黄芩苷作为功能单体，在二甲基甲酰胺溶液中制备得到不同黄芩苷含量的聚异丙基丙烯酰胺水凝胶。通过红外、紫外、扫描电镜和热分析等方法研究了所得凝胶的结构、形态、温敏性和力学性能。结果表明：黄芩苷的加入导致聚合凝胶由无色变为黄色，所得凝胶孔壁出现褶皱，孔洞尺寸随黄芩苷含量的增加而增加。黄芩苷在凝胶基体中主要起到模板作用，它的引入并未改变纯凝胶的体积相转变温度(VPTT），VPTT仍保持在32~34 °C，但温度敏感性能得到了明显改善，同时改善了纯凝胶的溶胀度和温度脉冲响应性，提高了储能模量。
Abstract:A kind of novel poly(N-isopropylacrylamide) hydrogel based baicalin was prepared in dimethyformamide by using flavonoids baicalin as functional monomer. The structure, morphology, temperature-sensitivity and mechanical property were studied by Fourier transform infrared spectroscopy(FT-IR), ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy(SEM) and thermal analysis. Results show that with the addition of baicalin, the prepared hydrogel turned into yellow from transparency, and the wrinkle occurs in pore wall of the prepared hydrogel. The pore size increases with the increasing of the baicalin content. The baicalin mainly plays the template effect in the matrix of hydrogel. The volume phase transition temperature (VPTT) keeps still at 32—34 °C, but the temperature-sensitivity increases. The swelling ratios and oscillating swelling-deswelling properties are improved by the introduction of baicalin, and yet the storage modulus.
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基金项目:国家自然科学基金资助项目（21104058）；天津市应用基础及前沿技术研究计划资助项目（12JCQNJC01400）
引用本文：
张青松,郭文娟,李捷,陈莉,薛蕊.黄芩苷对温敏凝胶的模板作用及其形态和性能功能[J].功能高分子学报,2012,25(3):.
ZHANG Qing-song,GUO Wen-juan,LI Jie,CHEN Li,XUE Rui.Template Action, Morphology and Property of Baicalin on Thermo-Responsive Hydrogel[J].Journal of Functional Polymers,2012,25(3):.
张青松,郭文娟,李捷,陈莉,薛蕊.黄芩苷对温敏凝胶的模板作用及其形态和性能功能[J].功能高分子学报,2012,25(3):.
ZHANG Qing-song,GUO Wen-juan,LI Jie,CHEN Li,XUE Rui.Template Action, Morphology and Property of Baicalin on Thermo-Responsive Hydrogel[J].Journal of Functional Polymers,2012,25(3):.
