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Berlin 2008 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 21: POSTERS Colloids, Nanoparticles and Aggregates

CPP 21.22: Poster

Wednesday, February 27, 2008, 16:00–18:30, Poster A

decontamination with sugar surfactant based bicontinuous microemulsions — •Stefan Wellert1, Thomas Hellweg1, Christian Groetsch2, Michael Dolle2, Hans-Juergen Altmann2, and Andre Richardt21University Bayreuth, PCI, Universitaetsstrasse 30, D-95440 Bayreuth — 2Bundeswehr Scientific Institute (NBC-Protection), Humboldtstr, D-29633 Munster

Bicontinuous microemulsions are continuously connected interwoven domains of oil and water. In a fishlike phase diagram, this type of microemulsion structure is located in the single phase region, very close to the fishtail point, where the three-, two- and one phase region meet.

Bicontinuous microemulsions are formed by the highest amounts of oil and water and the lowest necessary amount of surfactant. We study the bicontinuous region of a quaternary system water/rapeseed methyl ester/sugar surfactant/pentanol, which is environmental compatible and hence, a promising candidate for a modern decontamination medium.

We present results from studies of the phase behavior of quaternary systems. Moreover, the influence of an additional active component like oxidizing agents and enzymes is discussed.

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