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Ion Extractant as Cosurfactant at the Water-Oil Interface in Microemulsions

  • C. Bauer , P. Bauduin , O. Diat and T. Zemb
Published/Copyright: April 5, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 47 Issue 5

Abstract

Bicontinuous microemulsions are investigated as a model system for the specific adsorption phenomena of metal ions at the water-oil interface. Mixing an extremely hydrophobic ion extractant – tributyl phosphate (TBP) used here as co-surfactant – with an extremely hydrophilic sugar-based surfactant, we describe a new type of functionalized microemulsions that shows the classical Winsor phases, by varying the surfactant/extractant ratio. We focus on the Winsor III-type microemulsions by determining the phase diagrams whereas the microstructures were accessed by performing small angle neutron scattering experiments. Ultimately, these microemulsions may pave the way for the design of new selective ion extraction processes.

Kurzfassung

Wir untersuchen bikontinuierliche Mikroemulsionen als Modelsystem spezifischer Adsorptionsphänomene von Metall-Ionen an deren Wasser-Öl Grenzflächen. Mischt man ein stark hydrophobes Ionenextraktionsmittel (Extraktant – hier Tributylphosphat), welches als Co-Tensid dient, mit einem stark hydrophilen Zuckertensid, n-Octyl-beta-glucosid, so erhält man, allein durch Änderung des Tensid/Extraktant-Verhältnisses innovative und funktionalisierte Mikroemulsionen, welche mit den klassischen Winsorphasen beschrieben werden können. Hier beschränken wir uns auf Winsor-III-Mikroemulsionen, bestimmen deren Phasendiagramm und Mikrostruktur durch Neutronenkleinwinkelstreuung. Diese Mikroemulsionen könnten neue Wege für die Entwicklung weiterer, selektive Ionenextraktionsprozesse öffnen.

Key words:: Microemulsion; tributyl phosphate; ion extractant; sugar based surfactant; small angle neutron scattering
Stichwörter:: Mikroemulsion; Tributylphosphat; Ionenextraktionsmittel; zuckerbasiertes Tensid; Kleinwinkelneutronenstreuung
∗ Dr. Pierre Bauduin, Institut de Chimie Séparative bat. 426 – CEA Marcoule, 30200 Bagnols sur Cèze, France, Tel.: +(33)466339288, Fax: +(33)466337611. E-Mail:

Caroline Bauer studied chemistry at the Technical University of Munich and at the University of Regensburg (GERMANY) where she obtained her master degree. She is currently Ph.D. student at the Institute of Separation Chemistry of Marcoule (FRANCE) and working on models systems for the study of ion adsorption at liquid interfaces related to the extraction process in the nuclear field.

Pierre Bauduin obtained his Ph.D. in 2005 at the University of Regensburg (GERMANY) and worked on short chain amphiphiles derived from propylene glycols. He worked as a Post-doc at the CEA Saclay on the study of liquid/liquid extraction processes from a supramolecular point of view. Since 2007 he obtained a position as researcher at ICSM in the group “ions at interfaces” where he is working on the role of interfacial effects on the separation processes.

Olivier Diat obtained his Ph.D. in 1992 from the University of Bordeaux 1, working on the rheology of lyotropic liquid crystal phases. He worked 7 years at the ESRF on the high brilliance beamline ID2 and then obtained a permanent position as a researcher in CEA-Grenoble, working on proton exchange membrane for fuel cell application. Since 2007, he is scientist at ICSM responsible of the “scattering” team as well as the “ions at interfaces” laboratory.

Thomas Zemb obtained his Ph.D. in1985 from the University of Paris 11, he is Professor at the INSTN (FRANCE), and he is senior scientist and currently manager of the ICSM.

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Received: 2010-05-11
Published Online: 2013-04-05
Published in Print: 2010-09-01

© 2010, Carl Hanser Publisher, Munich

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Environmental/Technical Chemistry
  6. Alkyl Polyglycoside-Sorbitan Ester Formulations for Improved Oil Recovery
  7. Novel Surfactants
  8. Photosynthesis-inhibiting Effects of Cationic Biodegradable Gemini Surfactants
  9. Synthesis and Characterization of a New Cationic Galactolipid with Carbamate for Gene Delivery
  10. Physical Chemistry
  11. Dynamics of Formation of Vesicles Studied by Highly Time-resolved Stopped-flow Experiments
  12. Ion Extractant as Cosurfactant at the Water-Oil Interface in Microemulsions
  13. Microemulsions with Mixed Nonionic Surfactants and Isopropylmyristate
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  15. Synthesis
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  19. Manual Dishwashing – How can it be Optimized?
https://doi.org/10.3139/113.110082
Keywords for this article
Microemulsion; tributyl phosphate; ion extractant; sugar based surfactant; small angle neutron scattering

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Environmental/Technical Chemistry
  6. Alkyl Polyglycoside-Sorbitan Ester Formulations for Improved Oil Recovery
  7. Novel Surfactants
  8. Photosynthesis-inhibiting Effects of Cationic Biodegradable Gemini Surfactants
  9. Synthesis and Characterization of a New Cationic Galactolipid with Carbamate for Gene Delivery
  10. Physical Chemistry
  11. Dynamics of Formation of Vesicles Studied by Highly Time-resolved Stopped-flow Experiments
  12. Ion Extractant as Cosurfactant at the Water-Oil Interface in Microemulsions
  13. Microemulsions with Mixed Nonionic Surfactants and Isopropylmyristate
  14. Micellization and Interfacial Behaviour of Amitriptyline-Nonionic Surfactant Systems in Aqueous Medium
  15. Synthesis
  16. Ordered Ferrocene-containing Mesoporous Materials with Tailor-made Pore Size
  17. Cleaning Technology
  18. Comparison of Standards for Testing Electrical Dishwashers or Dishwashing Detergents
  19. Manual Dishwashing – How can it be Optimized?
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