Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: POSTERS Polyelectrolytes and Biological Systems

CPP 16.6: Poster

Dienstag, 24. März 2009, 14:00–16:30, P3

X-Ray Reflection Study on Block Copolymer Langmuir Films — •Volker Schön and Patrick Huber — Saarland University, 66123 Saarbrücken, Germany

We present X-ray measurements on Langmuir films of amphiphilic block copolymers of varibale length at various surface pressures corresponding to different phases in their compression isotherms.

The measurements were taken on a home made butterfly X-ray reflectometer with an accessibility of up to 9 orders of magnitude in reflected intensity while the films were prepared and controlled in a Langmuir trough.

The obtained reflectivities give hints to distinct conformational changes within the films investigated.