吡啶衍生物与均三苯甲酸的双组份超分子胶凝合成与性能  

Two-component Supermolecular Hydrogels Formed by Pyridine Derivatives and 1,3,5-Benzenetricarboxylic Acid

作　　者：刘淑珍 朱万才 钟金莲 王科军[1] 柳辉金 罗序中 

机构地区：[1]赣南师范学院化学化工学院,江西赣州341000

出　　处：《赣南师范学院学报》2012年第3期72-75,共4页Journal of Gannan Teachers' College(Social Science(2))

摘　　要：在4-氨基吡啶、4-吡啶甲胺分子上分别修饰丁二酸酐得到构筑超分子组装体的结构单元,选择均苯三甲酸作为配对小分子,成功合成了4-氨基吡啶、4-甲氨基吡啶与均苯三甲酸的双组份超分子水凝胶.最小胶凝浓度分别为23、35 mg/mL,在凝胶聚集体中,双组份凝胶剂聚集成带状或纤维状的聚集体,分子间氢键和π-π相互作用是形成自组装水凝胶的主要驱动力.Two pyridine derivatives were synthesized from 4-Aminopyridine, 4-Pyridinemethanamine and succinic anhydride. Two- component supermolecular hydrogels were formed by the two pyridine derivatives and 1,3,5-trinitrobenzoic acid. The Gelation experiments show that the low minimum gel concentration （MGC） of 4-amino pyridine and 4-Pyridinemethanamine derivatives are 23 and 35 mg/mL, respectively. The gel-sol transition temperature increases with the increase of concentration, and then reachs a ＂maximum＂. SEM results revealed that the gelators self-assembled into fibrous or ribbon-like aggregates in hydrogels. FTIR and NMR results demonstrated that the hydrogen bonding and π-π interactions were the main driving force for the formation of self-assembled gels.

关 键 词：水凝胶 吡啶衍生物 氢键 Π-Π相互作用 

分 类 号：O648.1[理学—物理化学]