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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: POSTER: Polymer Physics

CPP 8.37: Poster

Monday, March 26, 2007, 16:00–18:00, Poster B

Self assembly of a crystalline block copolymer in a selective solvent — •A.M. Mihut¹, A. Chiche¹, H Schmalz², and G Krausch¹ — ¹Physikalische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany — ²Makromolekulare Chemie I, Universität Bayreuth, 95440 Bayreuth, Germany

We investigate the formation and growth of complex supramolecular structures formed by a crystalline diblock copolymer (PEO-PB) in a selective solvent. The interaction between the crystalline block and the solvent can be controlled by the temperature. While cooling the system, the solvent (heptane) becomes a selective solvent for the amorphous block (PB). The resulting structure is related to the interplay between the phase separation and the crystallization of the PEO block. We study the effects of the experimental conditions (cooling rate and final temperature) as well as the molecular parameters on the morphology of the supramolecular objects by scattering techniques and electron microscopy.