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Regensburg 2007 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 11: INTERNAL SYMPOSIUM Scattering Experiments II

CPP 11.1: Invited Talk

Tuesday, March 27, 2007, 14:00–14:30, H37

Surface sensitive neutron scattering — •R. Steitz — Hahn-Meitner-Institut, SF1, Glienicker Str. 100, D-14109 Berlin

Current problems in soft matter science often require insight on the nanometer scale. In this contribution we will show how neutron reflectivity (NR) and grazing incidence small angle neutron scattering (GISANS) can be utilized to reveal details on thin films at solid-liquid and solid-gas interfaces. The first chapter will investigate the structure of the boundary of a hydrophobic polymer film and its adjacent water phase [1]. Chapter two will demonstrate that NR is an excellent tool for monitoring water uptake and respective structural changes in hydrophilic polyelectrolyte films [2] and chapter three will illustrate that application of GISANS can help to clarify transient lateral structures in molecular surfactant layers that are not detectable otherwise[3].

[1] R. Steitz, T. Gutberlet, T. Hauß, B. Klösgen, R. Krastev, S. Schemmel, A. C. Simonsen and G. H. Findenegg, Langmuir 19; 2409-2418 (2003). [2] R. Steitz, V. Leiner, R. Siebrecht and R. v. Klitzing, Colloids and Surfaces A. 163, 63-70 (2000). [3] R. Steitz, P. Müller-Buschbaum, S. Schemmel, R. Cubitt, and G. H. Findenegg, EPL 67, 962-968 (2004).

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