Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 11: POSTER Disperse Polymer Systems

CPP 11.4: Poster

Dienstag, 28. März 2006, 17:00–19:00, P3

New Sticker Polymers as Efficiency Boosters in Microemulsions — •Martin Brodeck, Gaetano Mangiapia, Henrich Frielinghaus, Christian Frank, Jürgen Allgaier, and Dieter Richter — Forschungszentrum Jülich GmbH, Institut für Festkörperforschung, 52425 Jülich, Germany

Amphiphilic diblock copolymers have been established to enhance the efficiency of surfactants dramatically (polymer boosting effect). The focus of the present paper focuses on sticker polymers with just a small oil-soluble block. Even though the amphiphilicity of these poylmers is rather low, they act as efficiency boosters as effectively as diblock copolymers. The microscopic structure of the domains is measured in small angle neutron scattering studies and compared with the macroscopic phase behaviour. Latest measurements involve sticker polymers with a higher functionality (larger arm number) and are compared to the simple sticker polymers. A theory by T. Auth and G. Gompper predicts a stronger sensitivity of the polymer effect with higher functionality. Ongoing work is aimed at four-functional sticker poylmers.