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AOT, influence of impurities on the phase behavior

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Trends in Colloid and Interface Science VIII

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 97))

Abstract

A peculair feature often observed within the sodium diethylhexylsulfosuccinate (AOT)—water-—oil phase diagram is an isolated two-phase island, when water in oil (w/o) microemulsions are formed at low temperatures. In this work, the influece of the hydrolysis products of AOT, namely monoester and alcohol, on the phase behavior has been modeled by adding SDS and octanol to (H2O/NaCl)—decane—AOT systems. Addition of small amounts of either compound, frequently present as impurities in AOT, leads to drastic shifts in the mean temperature of the three-phase regions in opposite directions. In particular, addition of octanol changes the shape of the one-phase region adjacent to the three-phase body.

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Author information

Authors and Affiliations

  1. Department for Physical and Macromolecular Chemistry Gorlaeus Laboratories, University of Leiden, Einsteinweg 55, Postbus 9502, 2300 RA, Leiden, The Netherlands

    W. Sager

  2. Max-Planck-Institut für Biophysikalische Chemie, Postfach 28 41, 37018, Göttingen, FRG

    R. Strey, W. Kühnle & M. Kahlweit

Authors
  1. W. Sager
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  2. R. Strey
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  3. W. Kühnle
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  4. M. Kahlweit
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Editor information

R. H. Ottewill A. R. Rennie

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© 1994 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Sager, W., Strey, R., Kühnle, W., Kahlweit, M. (1994). AOT, influence of impurities on the phase behavior. In: Ottewill, R.H., Rennie, A.R. (eds) Trends in Colloid and Interface Science VIII. Progress in Colloid & Polymer Science, vol 97. Steinkopff. https://doi.org/10.1007/BFb0115152

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  • DOI: https://doi.org/10.1007/BFb0115152

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  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-0984-9

  • Online ISBN: 978-3-7985-1673-1

  • eBook Packages: Springer Book Archive

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