Mixed Micellization and Surface Properties of Ionic Liquids/Triton X-100 Mixture System in Aqueous Media
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Abstract
Two binary systems of nonionic surfactant Triton X-100 and imidazolium ionic liquid surfactants with different carbon chain: C12mimBr (1-dodecyl-3-methylimidazolium bromide) and C14mimBr (1-tetradecyl-3-methylimidazoliumbromide) have been studied in this paper. The micellization and surface properties of the binary systems were determined by surface tension and conductivity methods, respectively. The critical micelle concentration (CMC), the maximum surface excess (Γmax), minimum area per molecule (Amin) and surface pressure at the CMC (ΠCMC) of single and mixed systems were obtained. Rubingh's theory was used to calculate the composition of the mixtures, and the molecular interaction parameter β. Negative value of β indicates synergism in mixed micelle formation. The order of absolute value of β and average β: C12mimBr/Triton X-100 > C14mimBr/Triton X-100. The values of ΔG0m and ΔG0ads have also been calculated, and both of them were found to be negative in all pure and mixed surfactants, indicating the spontaneity of micellization and adsorption of the surfactants.
Kurzfassung
In dieser Arbeit wurden zwei binäre Systeme aus dem nichtionischen Tensid Triton X-100 und ionischen Flüssigkeiten mit unterschiedlicher Kohenstoffkettenlänge (C12mimBr [1-Dodecyl-3-methylimidazoliumbromid] und C14mimBr [1-Tetradecyl-3-methylimidazoliumbromid]) untersucht. Die Mizellenbildung und die Oberflächeneigenschaften der binären Systeme wurden mit Hilfe von Oberflächenspannungs- und Leitfähigektismethoden bestimmt. Die kritische Miszellenbildungskonzentration (CMC), der maximale Oberflächenüberschuss (Γmax), der minimale Platzbedarf eines Moleküls (Amin) und der Oberflächendruck an der CMC (ΠCMC) des Mischsystems sowie der Einzelsystem wurden gemessen. Mit der Rubingh-Theorie wurden die Zusammensetzungen der Mischungen und der molekulare Wechselwirkungsparameter β berechnet. Negative β-Werte weisen auf Synergismen bei der Mischmizellenbildung hin. Die Reihenfolge der absoluten β- und der durchschnittlichen β-Werte ist: C12mimBr/Triton X-100 > C14mimBr/Triton X-100. Die Energien ΔG0m und ΔG0ads wurden ebenfalls berechnet. Beide waren für alle reinen und gemischten Tenside negativ, was auf eine spontane Mizellenbildung und Adsorption der Tenside hinweist.
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© 2013, Carl Hanser Verlag, Munchen
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Review Article
- Cost Effective Procedures for Extremely Efficient Synthesis of Environmental Friendly Surfactants
- Application
- Research the Oil Displacing Performance of Dodecyl Polyoxyethylene Ether Sulfonates at Difficult Conditions
- Research on Surfactant Flooding in High-temperature and High-salinity Reservoir for Enhanced Oil Recovery
- Environmental Chemistry
- Determination of Polyaromatic Hydrocarbons in Domestic, Commercial and Industrial soot samples
- Physical Chemistry
- Effect of Oil/Water Mass Ratios on the Composition and Solubilization of Microemulsion Systems Containing Tween/Alcohol/Alkane/NaCl Solution
- Properties of Binary Surfactant System of Alkyl Polyglycosides and α-Sulphonated Fatty Acid Methyl Ester
- Mixed Micellization and Surface Properties of Ionic Liquids/Triton X-100 Mixture System in Aqueous Media
- Preparation and Application of Cationic Surfactant Ion-selective Electrode
- Novel Surfactants
- Synthesis and Properties of Monododecyl Diphenyl Methane Disulfonate
- Technical Chemistry
- The Wettability Alteration Behavior of Cationic Gemini Surfactants on Oil-aged Mica Mineral Surfaces