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Phase Behavior and Solubilization of Microemulsions Containing C16mimBr with Different Oil-Water Ratios

  • Lusheng Chen , Jin Pan , Bin Sun , Xiaoyu Zhang , Xiaocui Cui , Jianjun Lu und Jinling Chai
Veröffentlicht/Copyright: 6. September 2017
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Tenside Surfactants Detergents
Aus der Zeitschrift Tenside Surfactants Detergents Band 54 Heft 5

Abstract

The effects of oil-water ratios (α) on the composition of the balanced interfacial layer and the optimum solubilization of microemulsions C16mimBr/butan-1-ol/oil (octane, decane, dodecane)/5% NaCl solution were investigated. As α increases, the alcohol solubility in water and oil phases (Sa) in the microemulsions also tends to increase. The reason is the relatively high solubility of the alcohol in the oil phase compared to the solubility in water. When α increases, the number of surfactant (nss) and co-surfactant (nas) molecules required to balance the interface layer and the proportion of alcohol in the interfacial layer (AS) increase but the solubilization capacity (SP*) decreases. When the total mass of water and oil is unchanged, the solubilization capacity of the microemulsion systems is lower the higher the relative content of oil is. The effects of different oils, salinity and temperature on the composition of the balanced interfacial layer and the solubilization of microemulsions were also investigated.

Kurzfassung

Die Einflüsse des Öl-Wasser-Verhältnisses (α) auf die Zusammensetzung der Grenzflächenschicht im Gleichgewicht und die optimale Solubilisierung der Mikroemulsionen C16mimBr/Butan-1-ol/Öl (Oktan, Dekan, Dodekan)/5 % NaCl-Lösung wurden untersucht. Mit zunehmendem α, nimmt auch die Alkohollöslichkeit in der Wasser- und Ölphase (Sa) in den Mikroemulsionen zu. Der Grund dafür ist die im Vergleich zur Löslichkeit in Wasser relativ hohe Löslichkeit des Alkohols in der Ölphase. Wenn α zunimmt, nimmt die Anzahl der Tensid (nss)- und Co-Tensid (nas)-Moleküle, die erforderlich sind, um die Grenzschicht und den Alkoholanteil in der Grenzschicht (AS) ins Gleichgewicht zu setzen, zu und die Solubilisierungskapazität (SP*) ab. Bei unveränderter Gesamtmasse von Wasser und Öl ist die Solubilisierungskapazität der Mikroemulsionssysteme niedriger, je höher der relative Gehalt an Öl ist. Die Wirkungen verschiedener Öle, des Salzgehalts und der Temperatur auf die Zusammensetzung der Gleichgewichtsgrenzflächen und die Solubilisierung von Mikroemulsionen wurden ebenfalls untersucht.

Key words: Microemulsion; oil-water ratio; phase behavior; solubilization; 1-hexadecyl-3-methylimidazolium bromide (C16mimBr); ionic liquid; soil remediation
Stichwörter: Mikroemulsion; Öl-Wasser-Verhältnis; Phasenverhalten; Solubilisierung; 1-Hexadecyl-3-methylimidazoliumbromid (C16mimBr); ionische Flüssigkeit; Bodensanierung
*Correspondence address, Mr. Prof. Jinling Chai, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P.R. China, E-Mail:

Lusheng Chen, born in 1961, Shandong Province of China, is a associate professor of chemistry. He graduated from Shandong Normal University in 1982 with a bachelor's degree. Since 1982, he has worked in Shandong Normal University, teaching physical chemistry. Special fields of interest are Physicochemical properties and applications of surfactant aggregates.

Jin Pan, born in 1992, Shanxi Province of China, is an Msc candidate of Shandong Normal University. Her interest of research is physical chemistry of surfactant solutions.

Bin Sun, born in 1992, Shandong Province of China, is an Msc candidate of Shandong Normal University. His interest of research is physical chemistry of surfactant solutions.

Xiaoyu Zhang, born in 1993, Shandong Province of China, is an Msc candidate of Shandong Normal University. Her interest of research is physical chemistry of surfactant solutions.

Xiaocui Cui, born in 1993, Shandong Province of China, is an Msc candidate of Shandong Normal University. Her interest of research is physical chemistry of surfactant solutions.

Jianjun Lu, born in 1962, Shandong Province of China, is a senior experimentalist of chemistry. He graduated from Shandong Normal University in 1982 with a bachelor's degree. Since 1982, he has worked in Shandong Normal University, teaching physical chemistry experiment. Special fields of interest are synthesis, characteristics and application of surfactants.

Jinling Chai, born in 1961, Shandong Province of China, is a chemistry professor. He studied solvent extraction from 1985 to 1988 in Shandong University and got an Msc degree in 1988. In 1988-1999, he worked in department of chemistry, Shandong Normal University, teaching physical chemistry. He was a PhD candidate in Shandong University in 2000–2003 and obtained a PhD degree in 2003. Since 2003, he has worked in Shandong Normal University, researching physical chemistry of surfactant solutions. Special fields of interest are Physicochemical properties and applications of surfactant aggregates.

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Received: 2017-03-02
Accepted: 2017-06-07
Published Online: 2017-09-06
Published in Print: 2017-09-15

© 2017, Carl Hanser Publisher, Munich

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  10. Effect of Some Vitamins of Group B (B1, B6, B12) on Micellar and Viscosity Properties of Anionic, Cationic and Nonionic Surfactants in Aqueous Solutions
  11. Phase Behavior and Solubilization of Microemulsions Containing C16mimBr with Different Oil-Water Ratios
  12. Thermodynamics of Micellization, Interfacial Behavior and Wettability Alteration of Aqueous Solution of Nonionic Surfactants
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https://doi.org/10.3139/113.110518
Schlagwörter für diesen Artikel
Microemulsion; oil-water ratio; phase behavior; solubilization; 1-hexadecyl-3-methylimidazolium bromide (C16mimBr); ionic liquid; soil remediation

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Detergents/Cleaning
  4. Application of Glycerin in Liquid Laundry Detergents as an Example of Innovation in the Household Chemicals Industry
  5. Application
  6. Characterization of Pyrene Solubilization in Selective Micellar Media of Novel Bio-degradable Natural Surfactant Saponin (Extracted from Soap Nut) and Conventional Surfactant SDBS in Presence and Absence of Common Salt NaCl
  7. The Effect of pH on the Properties of a Cationic Bitumen Emulsifier
  8. The Role of Fatty Acids Functional Group in Morinda citrifolia L. on Surface Tension and Diffusion Performance into Ink Particles
  9. Physical Chemistry
  10. Effect of Some Vitamins of Group B (B1, B6, B12) on Micellar and Viscosity Properties of Anionic, Cationic and Nonionic Surfactants in Aqueous Solutions
  11. Phase Behavior and Solubilization of Microemulsions Containing C16mimBr with Different Oil-Water Ratios
  12. Thermodynamics of Micellization, Interfacial Behavior and Wettability Alteration of Aqueous Solution of Nonionic Surfactants
  13. Novel Surfactants
  14. Synthesis and Properties of a Novel Gemini Surfactant with Bis-piperidinium
  15. Surface Activities and Quantum Chemical Calculations for Different Synthesized Cationic Gemini Surfactants
  16. Effect of Novel Surfactant on the Growth Kinetics of Cobalt Nanoparticles
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