Dresden 2009 – wissenschaftliches Programm

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SYSO: Symposium Self-organizing Surfaces and Interfaces

SYSO 4: Self-Organizing Surfaces and Interfaces III

SYSO 4.1: Vortrag

Donnerstag, 26. März 2009, 09:30–09:45, GÖR 226

Self organisation in ultrathin PEO films — •Hans-Georg Braun and Evelyn Meyer — Leibniz Institute of Polymer Research Dresden - Max Bergmann Center of Biomaterials, Dresden, Germany

Ultrathin Polyethyleneoxide films show a variety of morphological features that can be related to dewetting scenario as well as to crystallisation processes. Dewetting on microheterogenous surfaces allows the preparation of metastable non crystalline domains. Nucleation of these films which grow as highly branched dendritic structures is triggered by surface defects, contact by AFM tip or dewetting structures such as rims. The observations obtained on patterned surfaces are compared to the complex morphological features which can be observed for thin PEO films on homogeneous surfaces.