文献类型：期刊文献

中文题名：双烷链阳离子表面活性剂的合成与定量分析

英文题名：Synthesis and Quantitative Determination of Alkanediyl-α,ω-bis (dimethyl alkylammonium bromide)

作者：施云海[1];陈啟斌[2];童思[2];刘洪来[2];胡英[2]

机构：[1]华东理工大学化学工程研究所,上海200237;[2]华东理工大学化学系,上海200237

年份：2003

卷号：31

期号：3

起止页码：322

中文期刊名：分析化学

外文期刊名：Chinese Journal of Analytical Chemistry

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家杰出青年科学基金 (No .2 0 0 2 5 8618);上海市重点学科资助项目

语种：中文

中文关键词：合成;定量分析;双烷链阳离子表面活性剂;亲核加成;成盐反应;化学滴定分析;二甲基烷基叔胺;二溴烷烃;Gemini

外文关键词：Gemini surfactant, nucleophilic addition-saltforming reaction, chemical titration analysis;N,N-dimethyl alkyl tertiary amine, dibromoalkane

摘要：以N ,N 二甲基烷基叔胺和α,ω 二溴烷烃为原料 ,无水乙醇为溶剂合成阳离子型Gemini表面活性剂。反应产物以混合溶剂乙酸乙酯 乙醇重结晶纯化后 ,用红外光谱和核磁共振进行结构分析 ;以溴酚蓝为指示剂、二氯乙烷为分散相的两相化学滴定法测定其含量。结果表明 :7种已合成的阳离子型Gemini的活性物含量均在 97.5
Cationic Gemini surfactants, alkanediyl-α,ω-bis (dimethyl alkylammonium bromide) were synthesized from N,N-dimethyl alkyl tertiary amine and α,ω-alkyl dibromide by using ethanol as solvent. The reactants were recystallized in the ethyl acetate-ethanol solvent mixture and gave the purified products. The Gemini products were qualitatively detected and verified by infrared and 1H nuclear magnetic resonance analysis, and were also quantitatively determined by the two-phase chemical titration by using bromophenol blue as the indicator and dichloroethane as phase spiltting agent. The results showed that the purity of the seven synthesized Geminis are greater than 97.5% in weight.