Journal ArticleUnknown
Synthesis and characterization of choline–fatty-acid-based ionic liquids: A new biocompatible surfactant
Authors
Author Affiliations
Kyushu University, Jessore University of Science and Technology, Jashore University of Science and Technology, Universiti Teknologi Petronas
Published InJournal of Colloid and Interface Science
Year2019
Citations155
Abstract
Ionic liquid (IL) surfactants have attracted great interest as promising substitutes for conventional surfactants owing to their exceptional and favorable physico-chemical properties. However, most IL surfactants are not eco-friendly and form unstable micelles, even when using a high concentration of the surfactant. In this study, we prepared a series of halogen-free and biocompatible choline-fatty-acid-based ILs with different chain lengths and degrees of saturation, and we then investigated their micellar properties in aqueous solutions. Characterization of the synthesized surface-active ILs (SAILs) was performed by 1H and 13C nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, and elemental analysis. The surface-active properties of the SAILs were investigated by tensiometry, conductometry, and dynamic light scattering measurements. The critical micelle concentration…
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