温敏性水凝胶聚N-异丙基丙烯酰胺的制备与性能表征——推荐一个高分子化学综合实验  

Preparation and Characterization of Temperature-sensitive Hydrogel Poly(N-isopropylacrylamide):Recommending a Comprehensive Polymer Chemistry Experiment

作　　者：司江菊 岳长永 李顺 孙爱红 张珂 曾铄凯 孙宁波 SI Jiang-ju;YUE Chang-yong;LI Shun;SUN Ai-hong;ZHANG Ke;ZENG Shuo-kai;SUN Ning-bo(School of Chemistry and Materials Engineering,Xinxiang University,Xinxiang453003,China)

机构地区：[1]新乡学院化学与材料工程学院,新乡453003

出　　处：《高分子通报》2022年第9期60-65,共6页Polymer Bulletin

基　　金：国家自然科学基金(No.51901200,52001270)。

摘　　要：本实验以温敏性水凝胶聚N-异丙基丙烯酰胺的制备为切入点,实验内容既包含自由基聚合的合成过程,又通过实验室简单精确的温度控制展示温敏性水凝胶的体积相变过程,激发学生的实验兴趣。同时,引入变温核磁共振波谱仪对制备水凝胶相变过程中的结构变化进行表征,让学生更进一步理解水凝胶体积相变背后的结构变化,领悟其性能与结构之间的辩证关系。此外,将温敏性水凝胶在污水处理与油水分离等领域的最新应用引入到实验中,反映水凝胶领域发展的新思想和新成果。最终达到提升本科实验教学质量,培养高素质综合型人才的根本目的。This experiment starts with the preparation of temperature-sensitive hydrogel poly-N-isopropylacrylamide.The content of the experiment not only includes the synthesis process of radical polymerization,but also demonstrates the phase transition of the temperature-sensitive hydrogel through simple and precise temperature control in the laboratory.The process of volume phase change will stimulates students’interest in experiments.At the same time,nuclear magnetic resonance spectrometer is introduced to characterize the structural changes during the phase change process of the hydrogel at variable temperatures,allowing students to further understand the structural changes behind the volume phase change of the hydrogel,and comprehend the dialectical relationship between its performance and structure.In addition,the latest applications of temperature-sensitive hydrogels in the fields of oil-water separation and sewage treatment are introduced into the experiment,reflecting new ideas and new achievements in the development of hydrogels.Ultimately the fundamental purpose of improving the quality of undergraduate experimental teaching and cultivating high-quality comprehensive talents is achieved.

关 键 词：温敏性水凝胶 聚N-异丙基丙烯酰胺 自由基聚合 体积相变 

分 类 号：TQ316.322-4[化学工程—高聚物工业] G642.423[文化科学—高等教育学]