Journal Article

PreJuSER-12977

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Confined Polymer Dynamics on Clay Platelets

Frielinghaus, X. ; Brodeck, M.FZJ* ; Holderer, O.FZJ* ; Frielinghaus, H.FZJ*

2010
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/la102667k

Abstract: The structure and dynamics of poly(ethylene oxide) adsorbed on dispersed clay platelets are investigated by small-angle neutron scattering and neutron spin-echo spectroscopy. The intermediate scattering function has a mobile contribution described by the Zimm theory and an immobile contribution that is constant within the time window. The immobile fraction as a function of the scattering vector Q is described by a Lorentz function, from which a localization length is determined. The relaxation rates grow with polymer concentration in agreement with dielectric measurements but contrary to pure polymer gels.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Streumethoden (IFF-4)
2. Neutronenstreuung (IFF-5)
3. JCNS (Jülich Centre for Neutron Science JCNS (JCNS) ; JCNS)

Research Program(s):

1. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)
2. BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung (P45)

Experiment(s):

1. J-NSE: Neutron spin-echo spectrometer (NL2ao)
2. KWS-2: Small angle scattering diffractometer (NL3ao)

Appears in the scientific report 2010

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