基于衣康酸的表面活性剂：I. 磺化衣康酸辛酯二钠阴离子表面活性剂的合成与表征
Itaconic Acid Based Surfactants: I. Synthesis and Characterization of Sodium -Octyl Sulfoitaconate Diester Anionic Surfactant.
作者信息
Xu Jun, Cao Fengzhi, Li Tong, Zhang Shuai, Gao Chuanhui, Wu Yumin
机构信息
Chemical Engineering College, Qingdao University of Science and Technology, Qingdao, 266042 People's Republic of China.
出版信息
J Surfactants Deterg. 2016;19:373-379. doi: 10.1007/s11743-015-1769-4. Epub 2016 Feb 1.
A novel itaconate-based surfactant, namely sodium -octyl sulfoitaconate diester (SOSID), has been synthesized from itaconic acid (IA) and -octanol by sulfonation and esterification reaction processes. The effects of reaction temperature, reaction time, molar ratios of -octanol to IA and the catalyst dosage on the esterification were investigated. The chemical structure of the surfactants SOSID was characterized by means of LC-MS and confirmed by FT-IR and H NMR spectroscopy. The surface tension and the critical micelle concentration (CMC) were determined as 25.02 mN/m and 4.0 × 10 mol/L by using surface tensiometer at 20 °C. Further investigations showed that SOSID possess excellent wetting, emulsifying and lime soap dispersing properties.
一种新型的基于衣康酸的表面活性剂，即磺化衣康酸二辛酯钠（SOSID），已通过磺化和酯化反应过程由衣康酸（IA）和正辛醇合成。研究了反应温度、反应时间、正辛醇与IA的摩尔比以及催化剂用量对酯化反应的影响。通过液相色谱-质谱联用（LC-MS）对表面活性剂SOSID的化学结构进行了表征，并通过傅里叶变换红外光谱（FT-IR）和核磁共振氢谱（H NMR）进行了确认。在20℃下使用表面张力仪测定表面张力和临界胶束浓度（CMC）分别为25.02 mN/m和4.0×10⁻⁴ mol/L。进一步研究表明，SOSID具有优异的润湿、乳化和钙皂分散性能。
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