Berlin 2005 – wissenschaftliches Programm
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O: Oberflächenphysik
O 36: Postersitzung (Elektronische Struktur, Grenzfl
äche fest-flüssig, Halbleiteroberfl
ächen und -grenzfl
ächen, Nanostrukturen, Oberfl
ächenreaktionen, Teilchen und Cluster, Struktur und Dynamik reiner Oberfl
ächen)
O 36.18: Poster
Montag, 7. März 2005, 15:00–18:00, Poster TU F
Wetting on the well ordered and irregular structured surfaces from core-shell particles — •Alla Synytska1, Leonid Ionov1, Sergiy Minko2, Klaus-Jochen Eichhorn1, Manfred Stamm1, and Karina Grundke1 — 1Leibniz Institute of Polymer Research Dresden, Germany — 2Clarkson University, Chemistry Department, Potsdam, USA
Wetting and non-wetting phenomena are ubiquitous in the natural and technological worlds, and their understanding has been the subject of intensive investigations over the past decades. Numerous surface modification techniques are used to control wettability and adhesion of polymer surfaces. A promising strategy to regulate wetting behaviour is the combination of the surface patterning and the chemical surface modification. In the present study we suggest strategy to obtain patterned surfaces with specifically designed surface roughness by using core-shell particles. The surface morphology and roughness is built by self-assembled submicrometer- and micrometer-sized monodisperse core-shell particles forming ordered films on silicon wafer substrates. The shell of the particles is made from polymer brushes covalently grafted onto the particles. The wetting behaviour of both individual liquids and water/methanol mixtures on well ordered structured and irregular fractal surfaces from core shell particles of different size will be discussed.