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Neither Gaussian chains nor hard spheres - star polymers seen as ultrasoft colloids

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Trends in Colloid and Interface Science XIV

Part of the book series: Progress in Colloid and Polymer Science ((PROGCOLLOID,volume 115))

Abstract

In dense solution high functionality star polymers show ordering phenomena which give rise to a well-pronounced peak in the static structure factor, S exp(Q), observed by small-angle neutron scattering. The concentration dependence of S exp (Q) gives evidence for unusual phase behaviour as predicted by theory. In addition, the dynamics of the star polymer solutions is dominated by an increasing amount of structural arrest with increasing concentration. The mean square displacement obtained from neutron spin-echo spectroscopy is compared to the blob size obtained from dynamic light scattering. Thermal energy enables each star core to perform restricted motion over a spatial extent equal to the blob size of the surrounding dense star polymer solution.

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Author information

Authors and Affiliations

  1. IFF-Neutronenstreuung Forschungszentrum Jülich, 52425, Jülich, Germany

    J. Stellbrink, J. Allgaier, M. Monkenbusch & D. Richter

  2. Institut für Theoretische Physik II, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225, Düsseldorf, Germany

    A. Lang, C. N. Likos, M. Watzlawek & H. Löwen

  3. Institute Laue-Langevin, BP156, 38042, Grenoble, France

    G. Ehlers & P. Schleger

  4. Inst. Theor. Phys.Tu Wien, Wiedner Hauptstr. 8-10, A-1040, Wien, Austria

    A. Lang

Authors
  1. J. Stellbrink
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  2. J. Allgaier
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  3. M. Monkenbusch
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  4. D. Richter
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  5. A. Lang
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  6. C. N. Likos
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  7. M. Watzlawek
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  8. H. Löwen
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  9. G. Ehlers
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  10. P. Schleger
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Editor information

Editors and Affiliations

  1. University College Dublin, Ireland

    Vitaly Buckin (Chairman of the Organising Committee) (Chairman of the Organising Committee)

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© 2000 Springer-Verlag

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Stellbrink, J. et al. (2000). Neither Gaussian chains nor hard spheres - star polymers seen as ultrasoft colloids. In: Buckin, V. (eds) Trends in Colloid and Interface Science XIV. Progress in Colloid and Polymer Science, vol 115. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-46545-6_18

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  • DOI: https://doi.org/10.1007/3-540-46545-6_18

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-67128-2

  • Online ISBN: 978-3-540-46545-4

  • eBook Packages: Springer Book Archive

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