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Berlin 2001 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 18: Poster: Polymer Blends, Heterogeneous Systems, Colloids and Nanoparticles, Interfaces, Polyelectrolytes

CPP 18.27: Poster

Wednesday, April 4, 2001, 12:30–15:00, AT1

Influence of the Chain Architecture on Phase and Adsorption Behavior — •M. Wolkenhauer1, P. Müller-Buschbaum2, O. Wunnicke3, M. Stamm3, J. Roovers4, G. von Grosigk5, R. Cubitt6, and G. Kozik71MPI für Polymerforschung, Ackermannweg 10, 55128 Mainz — 2TU München Physik Department LS E13, James-Franck-Str.1, 85747 Garching — 3IPF Dresden, Hohe Str. 6, 01069 Dresden — 4ICPET, National Research Council Canada,Ottawa, Canada, K1A 0R6 — 5Hasylab/DESY, Notkestr. 85, 22603 Hamburg — 6ILL, B.P. 156, F-38043 Grenoble Cedex, France — 7GKSS-Forschungszentrum, Max-Planck-Str., 21502 Geesthacht

Changes in the chain architecture of polymers influence the whole behavior of polymers, like the glass transition temperature or dynamics. Due to the entropic effects of the chain conformation and the enthalpic effects of the added endgroups the adsorption and the phase behavior differ from the one of linear polymer chains. Regular starlike polymers are a special class of branched polymers which show a spread behavior depending on their functionality (number of arms) and the molecular weight of the arms. Thus they are a link for the understanding of the behavior of linear polymers up to micelles. We investigate the adsorption and the phase behavior of regular starlike polymers with different number of arms and arm weight.

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