摘要
以正辛酸、二乙烯三胺、环氧氯丙烷和亚硫酸钠为主要原料合成了一种氨基磺酸盐型两性表面活性剂3-双(辛酰胺乙基)氨基-2-羟基-1-丙基磺酸钠(BHS),用红外光谱、质谱和核磁共振谱图确证了产物的结构。该表面活性剂水溶液性能测试结果表明:25℃时临界胶束浓度(cmc)为5.2×10^(-4)mol/L,最低水/空气界面张力(γcmc)低至24m N/m。加入0.1mol/L Na Cl后,cmc减小至4.7×10^(-4)mol/L,γcmc降低至23.7m N/m。升高温度,cmc增加,γcmc下降。BHS的润湿性、乳化性能优于双辛酰胺乙基丙烷磺酸钠表面活性剂。
An amphoteric surfactant,3-bis（octylamidoethyl）amino-2-hydroxypropane sulfonate（BHS）,was synthesized using octanoic acid,diethylenetriamine,epichlorohydrin and sodium bisulfite as starting materials. The structure of this surfactant was confirmed by FTIR,ESI-MS and ~1H NMR. The critical micelle concentration（cmc）was 0.52×10^-4mol/L and the lowest surface tension（γcmc）was 24 m N/m at 25℃. With the addition of Na Cl solution（0.1mol/L）,the cmc and γcmc decreased to 0.47×10^-4mol/L and 23.7m N/m,respectively. With an increase in temperature,the cmc increased,while the γcmc decreased. The performance of BHS showed that this surfactant exhibited better foam stability,wetting and emulsifying abilities than another typical surfactant bis（octylamidoethyl）amino propane sulfonate.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2016年第3期890-895,共6页
Chemical Industry and Engineering Progress
关键词
两性表面活性剂
氨基磺酸
界面张力
临界胶束浓度
amphoteric surfactant
amino acid
interface tension
critical micelle concentration
作者简介
第一作者：余潇潇（1991-），男，硕士研究生。
联系人：刘学民，副教授，主要研究方向为表面活性剂的合成与应用。E-maillxm@jiangnan．edu．cn。
