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http://dx.doi.org/10.9713/kcer.2012.50.2.282

A Study on Synthesis of Glycidol Based Nonionic Surfactant  

Lim, Jong Choo (Department of Chemical and Biochemical Engineering, Dongguk University)
Kim, Byeong Jo (AK ChemTech Central Research Lab.)
Choi, Kyu Yong (AK ChemTech Central Research Lab.)
Publication Information
Korean Chemical Engineering Research / v.50, no.2, 2012 , pp. 282-291 More about this Journal
Abstract
The PGLE and PGLE3 nonionic surfactants were synthesized from the reaction between glycidol and lauryl acid and their structures were confirmed by $^1H$ and $^{13}C$ NMR analysis. The CMCs of PGLE and PGLE3 surfactants were found to be $3.59{\times}10^{-2}$ mol/L and $8.80{\times}10^{-2}$ mol/L respectively and the surface tensions at their CMC conditions were 26.09 mN/m and 28.68 mN/m respectively. Dynamic surface tension measurement has shown that the adsorption rate of surfactant molecules at the interface between air and surfactant solution was found to be relatively fast in both surfactant systems, presumably due to high mobility of surfactant molecules. The contact angles of PGLE and PGLE3 nonionic surfactants were $25.5^{\circ}$ and $9.5^{\circ}$ respectively. Dynamic interfacial tension measurement showed that both surfactant systems reached equilibrium in 20 minutes and the interfacial tensions at equilibrium condition in both systems were 0.42 mN/m and 0.53 mN/m respectively. The PGLE surfactant system has indicated higher foam stability than the PGLE3 surfactant system, which is consistent with surface tension measurement. The phase behavior experiments performed at $25{\sim}60^{\circ}C$ in systems containing nonionic surfactant, water, n-hydrocarbon oil and cosurfactant showed a lower phase or oil in water microemulsion in equilibrium with excess oil phase at all conditions investigated during this study.
Keywords
Glycidol Nonionic Surfactant; Critical Micelle Concentration; Surface Tension; Interfacial Tension; Contact Angle;
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Times Cited By KSCI : 7  (Citation Analysis)
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