摘要
以环氧氯丙烷、亚硫酸氢钠、十二烷基叔胺为原料合成了两性表明活性剂——十二烷基二甲基羟丙基磺基甜菜碱,并对其反应条件进行了优化.其季铵化反应的最佳工艺参数为:反应温度75℃,m(十二烷基叔胺)/m(3-氯-2-羟基丙磺酸钠)=1∶1.3,乳化剂用量为总质量的1%,反应4 h后用滴加的方式加入适量碱性催化剂并调节pH=8.反应7 h后,叔胺转化率≥93%,活性物含量≥30%,游离胺含量<1%,硫酸盐灰分<13%,季铵盐含量<1%.
Dodecyl-2-hydroxy-1-proply sulfobetaine was synthesized with sodium bisulfite , epichlorohydrin and dodecylamine, its synthesize technics was optimized. The parameters were got, T = 75 ℃, m (dodecylamine) : m (3-chlorine-2-hydroxy propy- lsulfonicsodium) = 1 : 1.3,4h later,basic was instilled,when time to 7 h,the transition ratio ≥93%,free ammonia%〈1%, sulfate ash cent〈13%.
出处
《陕西科技大学学报(自然科学版)》
2007年第2期86-90,共5页
Journal of Shaanxi University of Science & Technology