Dresden 2006 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 10: POSTER Nonequilibrium Phenomena in Soft Condensed Matter

CPP 10.9: Poster

Tuesday, March 28, 2006, 17:00–19:00, P3

Defect Dynamics in Thin Films of Block Copolymers — •Marcus Böhme¹, Martin Kreis², Sabine Scherdel¹, Nicolaus Rehse¹, and Robert Magerle¹ — ¹Chemische Physik, TU Chemnitz, D-09107 Chemnitz — ²Physikalische Chemie II, Universität Bayreuth, D-95440 Bayreuth

We investigate the dynamic processes in thin films of a cylinder forming polystyrene-block-polybutadiene block copolymer swollen in chloroform vapour. With tapping mode atomic force microscopy we study in situ the dynamics of defect structure during annealing of the liquid film. Our experiments show correlations between the dynamics of neighbouring defects, annealing of defects via formation of transient phases, shape fluctuations of cylinders and lamellae, as well as the dynamics of individual perforations in a hexagonally perforated lamellae.