聚(丙烯酰胺-共聚-苯并-18-冠-6丙烯酰胺)凝胶光栅构建及冠醚含量对铅离子检测性能的影响  

Fabrication of poly(acrylamide-co-benzo-18-crown-6acrylamide)hydrogel grating and the effect of crown ether content on its Pb2+-detection performance

作　　者：田小玉 汪伟[1,2] 谢锐 巨晓洁[1,2] 刘壮 褚良银[1,2] Tian Xiaoyu;Wang Wei;Xie Rui;Ju Xiaojie;Liu Zhuang;Chu Liangyin(School of Chemical Engineering,Sichuan University,Chengdu 610065;State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065)

机构地区：[1]四川大学化学工程学院,成都610065 [2]四川大学高分子材料工程国家重点实验室,成都610065

出　　处：《化工新型材料》2023年第7期250-253,265,共5页New Chemical Materials

基　　金：国家自然科学基金(21991101)。

摘　　要：通过微接触复刻技术制备了具有优良Pb^(2+)检测性能的聚(丙烯酰胺-共聚-苯并-18-冠-6丙烯酰胺)(PAB)凝胶光栅。该凝胶光栅的高度可随着溶液中Pb^(2+)浓度的变化而变化。通过优化PAB凝胶光栅中的冠醚含量发现,当冠醚含量为20%(摩尔分数)时,凝胶光栅可展现出最佳的Pb^(2+)检测性能。该PAB凝胶光栅可实现对水体中Pb^(2+)的高灵敏、快速、高选择性和重复性检测,其检测限可低至10^(-9)mol/L,响应时间仅为4min。因此,该凝胶光栅系统在灵敏快速地检测水体中Pb^(2+)方面具有重要的应用前景。This work reported on the fabrication of poly(acrylamide-co-benzo-18-crown-6 acrylamide)(PAB)hydrogel grating with excellent Pb^(2+)-detection performance via micro-contacting replication technique.The height of the PAB hydrogel grating varied upon the change of Pb^(2+)concentrationin in aqueous solution.The results of optimization of crown ether contents showed that,with 20mol%crown ether,the hydrogel grating exhibited the optimal performance for Pb^(2+)detection.This PAB hydrogel grating could realize the highly-sensitive,rapid,highly-selective,and repeatable detection of Pb^(2+)in water,with a detection limit as low as 10^(-9)mol/L and a detection time of only 4min.The hydrogel grating system was promising for sensitive and rapid detection of Pb^(2+)in water.

关 键 词：凝胶光栅 响应型水凝胶 铅离子检测 冠醚 高灵敏 

分 类 号：TQ317[化学工程—高聚物工业]