含酰胺基团的新型糖基表面活性剂的合成及乳化性能  

Novel emulsions formed by a new glycosyl surfactants containing an amide group

作　　者：潘婷 裴晓梅 崔正刚 宋冰蕾 PAN Ting;PEI Xiaomei;CUI Zhenggang;SONG Binglei(The Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学化学与材料工程学院合成与生物胶体教育部重点实验室,江苏无锡214122

出　　处：《应用化工》2024年第7期1549-1553,共5页Applied Chemical Industry

基　　金：国家自然科学基金项目(22272063)。

摘　　要：采用月桂酸、1,3-丙二胺、葡萄糖等化合物为原料,经过酯化反应、胺酯交换反应和还原胺化反应,合成了一种含酰胺和仲胺基团的新型葡萄糖基表面活性剂N′-Glu-N-(3-氨基丙基)月桂酸酰胺(C_(12)-2N-Glu),通过核磁氢谱(^(1)H NMR)、红外光谱(FTIR)、质谱对其结构进行表征。通过表面张力仪测试了表面活性,结果表明,该表面活性剂的临界胶束浓度(cmc)和γ_(cmc)分别为0.26 mmol/L和30.86 mN/m,具有非常好的胶束聚集能力和降低水表面张力的能力。且具有较好的乳化性能,乳状液可以在室温下稳定1个月以上,且该乳状液具有良好的pH响应性,有望在智能材料领域有潜在的应用。Taking the lauric acid,1,3-propanediamine,and glucose as the raw materials,a novel glycosyl surfactants(C_(12)-2N-Glu)containing amide group and secondary amine groups was successfully synthesized through esterification,amine ester exchange and reduced amination reactions.Its structure was characterized by FTIR,^(1)H NMR and ESI-MS to demonstrate its purity.The surface activity of the surfactant was tested by a surface tension meter.The results showed that the critical micelle concentration andγ_(cmc)of the surfactant were 0.26 mmol/L and 30.86 mN/m,respectively,which possessed very good micelle aggregation ability and the ability to reduce the surface tension of water.The surfactant has good emulsification ability.The oil-in-water emulsions stabilized by C_(12-)2N-Glu can be stored at room temperature for at least one month.The emulsions also show sensitive pH responsiveness,indicating their potential applications in smart systems.

关 键 词：新型表面活性剂 糖基酰胺 乳化性能 PH响应性 

分 类 号：TQ423[化学工程]