Synthesis and Surface Properties of N,N-Dimethyl-N-dodecyl Polyoxyethylene Amine-Based Surfactants: Amine Oxide, Betaine and Sulfobetaine
作者:Liya Hou、Huinian Zhang、Hui Chen、Qibo Xia、Dongyang Huang、Li Meng、Xuefeng Liu
DOI:10.1007/s11743-013-1540-7
日期:2014.5
hybrid surfactants, namely N,N‐dimethyl‐N‐dodecyl polyoxyethylene (3) amine oxide, and the corresponding betaine and/or sulfobetaine, have been synthesized. Their molecule structures were characterized by means of electrospray ionization mass spectrometry and 1H nuclear magnetic resonance. Compared to the structurally related conventional amine oxide, betaine and sulfobetaine, the critical micelle concentrations
已经合成了非离子-两性离子杂化表面活性剂,即N,N-二甲基-N-十二烷基聚氧乙烯(3)氧化胺,以及相应的甜菜碱和/或磺基甜菜碱。它们的分子结构通过电喷雾电离质谱和1 H核磁共振来表征。与结构上相关的常规氧化胺,甜菜碱和磺基甜菜碱相比,三种混合表面活性剂的临界胶束浓度比传统表面活性剂的临界胶束浓度小一个数量级。亲水性头基和疏水性尾部之间的聚氧乙烯链段使杂化表面活性剂的表面活性优于其结构相关的表面活性剂。