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Itaconic Acid Based Surfactants: I. Synthesis and Characterization of Sodium n ‐Octyl Sulfoitaconate Diester Anionic Surfactant
Author(s) -
Xu Jun,
Cao Fengzhi,
Li Tong,
Zhang Shuai,
Gao Chuanhui,
Wu Yumin
Publication year - 2016
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-015-1769-4
Subject(s) - chemistry , itaconic acid , pulmonary surfactant , critical micelle concentration , surface tension , micelle , sodium , nuclear chemistry , wetting , organic chemistry , inorganic chemistry , aqueous solution , chemical engineering , copolymer , polymer , biochemistry , physics , quantum mechanics , engineering
A novel itaconate‐based surfactant, namely sodium n ‐octyl sulfoitaconate diester (SOSID), has been synthesized from itaconic acid (IA) and n ‐octanol by sulfonation and esterification reaction processes. The effects of reaction temperature, reaction time, molar ratios of n ‐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 1 H NMR spectroscopy. The surface tension γ and the critical micelle concentration (CMC) were determined as 25.02 mN/m and 4.0 × 10 −4 mol/L by using surface tensiometer at 20 °C. Further investigations showed that SOSID possess excellent wetting, emulsifying and lime soap dispersing properties.