Berlin 2012 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 22: Poster: Charged Soft Matter
CPP 22.12: Poster
Wednesday, March 28, 2012, 11:00–13:00, Poster A
Interfacial engineering of polymer multilayers with polarized biomolecules: a new approach in growing supramolecular layer structures — •Neelima Paul1,2, Amitesh Paul3, Stephan Mattauch4, Peter Müller-Buschbaum2, and Martha Ch. Lux-Steiner1 — 1Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany — 2TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany — 3TU München, Physik-Department, LS Neutronenstreuung, James-Franck-Str. 1, 85748 Garching, Germany — 4JCNS Forschungszentrum Jülich GmbH Outstation at FRM II Lichtenbergstrae 1, 85747 Garching, Germany
The development of polymer-based structures is hindered due to the difficulties in realizing well-defined modulated structures with very small interlayer roughness out of charged polymers. We compare two types of heterostructures, one of them was prepared with embedded layers of polarized biomolecules. Using specular and off-specular neutron scattering, we observe,in the heterostruture containing the biomolecule, formation of ordered modulated structures with a drastic decrease in the roughness parameter. For the multilayer without the biomolecule we have indications of formation of island-like structures. Our study thus demonstrates that polarized biomolecules can interrupt the propagation of island-like structures at such interfaces which can be effectively used in achieving well defined supramolecular layer structures out of charged polymers.