Form fluctuations of polymer loaded spherical microemulsions
Spherical microemulsions have been widely used to study confined dynamics. In addition polymer loaded microemulsions serve as a model system for the interaction of bio molecules with cell membranes. With this work we want to investigate the surfactant dynamics of a spherical water-AOT-decane microemulsion, modified by Poly(ethyleneglycol) (PEG). Our preliminary investigations suggest, that the polymer is located at the surfactant shell and modifies its relaxation behaviour. Based on this investigations, two different molecular weights of PEG are chosen, ensuring radii of gyration below and above the droplet core radius. Complementary to rather indirect preliminary measurements by X-ray and light scattering as well as dielectric spectroscopy the neutron spin-echo experiments will give us the opportunity to quantify directly the bending modulus of the surfactant shell. With additional SANS experiments the position of the polymer inside the droplets and the radii of gyration can be verified.
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KUTTICH Bjorn; APPEL Christian; DIDZOLEIT Haiko; FALUS Peter; GRILLO Isabelle; KHANEFT Marina; SPEHR Tinka; STUEHN Bernd and WEBER Andreas. (2013). Form fluctuations of polymer loaded spherical microemulsions. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1275
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