Berlin 2012 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 16: Poster: Colloids and Complex Liquids
CPP 16.33: Poster
Dienstag, 27. März 2012, 18:15–20:45, Poster A
Efficiency boosting in application: Influence of the Poloxamer size on the phase behaviour of skin friendly microemulsions for decontamination — •Sebastian Höhn1, Ralph Neubauer1, Christoph Schulreich1, André Richardt2, and Thomas Hellweg1 — 1Phys. und Biophys. Chemie (PC III), Universität Bielefeld, Universitätsstr. 25, 33615 Bielefeld, Germany — 2WIS Munster, ABC-Schutz, Humboldtstraße 100, 29633 Munster, Germany
Bicontinuous microemulsions exhibit sponge-like domain structures of oil and water separated by an enormous surfactant interface and are therefore excellent media for enzymatically catalysed reactions.
The addition of small portions of amphiphilic polymers can increase the efficiency of the surfactant, a phenomina known as the efficiency boosting effect. In this contribution the influence of the size of different commercially available triblock copolymers (Poloxamers) on two systems composed of sugar surfactant, alcohol, water, and oil is shown.
With the added block copolymers being a part of the amphiphilic interface, their effect on the size of the domains is of high interest. The results of small angle scattering methods (SAXS and SANS) for our model system based on n-decyl-β-D-maltoside (C10G2) and cyclohexane are compared with a technical system consisting of Simulsol SL55 (C10−12G1.3, Seppic) and Lanol99 (isononyl-isononate, Seppic). Here the influence of different Pluronic Polymers (BASF) on the phase diagram is presented.