Synthesis and Surface-Active Properties of a Homologous Series of Star-Like Triple-Chain Anionic Surfactants Derived from 1,1,1-Tris(hydroxymethyl)ethane
作者:Xu Li、Fenglan Xing、Qun Xu、Xiaolong Sun、Yuping Wang、Liyan Wang、Pinglang Wang
DOI:10.1007/s11743-015-1751-1
日期:2016.1
A novel homologous series of trimeric anionic surfactants, 3CnTE3CNa (where n is a fatty acid chain length of 7, 10, or 12), with three hydrocarbon chains and three carboxylate heads connected via tri‐etheric bonds were synthesized from long‐chain α‐bromo fatty acids and a triol, 1,1,1‐tris(hydroxymethyl)ethane. The obtained trimeric carboxylic acids were esterified and purified by silica gel column
从长链合成了一系列新颖的三聚阴离子表面活性剂系列3C n TE3CNa(其中n是7、10或12的脂肪酸链长度),其中三个烃链和三个羧酸酯头通过三醚键连接。 α-溴代脂肪酸和三醇1,1,1-三(羟甲基)乙烷。将得到的三聚羧酸酯化并通过硅胶柱色谱法纯化,然后用稀氢氧化钠溶液水解以形成一系列三聚羧酸盐表面活性剂产物。所有制备的化合物均经过IR,1 H NMR和13分析13 C NMR光谱证实其化学结构。研究了它们的表面活性。图3C的临界胶束浓度(CMC)ñ TE3CNa均的0.12-0.71毫摩尔/ L的范围内,和在CMC中的表面张力(γ CMC)为29.3-34.8 mN / m的。