Journal Article

PreJuSER-52770

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dynamic heterogeneity in hydrogen-bonded polymers

Muresan, A. S. ; Dubbeldam, J. L. A. ; Kautz, H. ; Monkenbusch, M.FZJ* ; Sijbesma, R. P. ; van der Schoot, P. ; de Jeu, W. H.

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1160  doi:10.1103/PhysRevE.74.031804

Abstract: We report on neutron spin echo experiments on hydrogen-bonded polymers and compare the experimentally found dynamical structure factor with theoretical predictions. Surprisingly, we find that in the melt phase the expected scaling of the Rouse dynamics is not satisfied. We propose an explanation based upon the large spatial volume occupied by the connecting groups. When the effects of these bulky groups on the local friction are taken into account, the usual scaling behavior is restored.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Neutronenstreuung (IFF-INS)

Research Program(s):

1. Kondensierte Materie (P54)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2006
Notes: This version is available at the following Publisher URL: http://pre.aps.org

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Database coverage:

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