Journal Article

FZJ-2013-01513

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases

Krutyeva, M. (Corresponding author)FZJ* ; Wischnewski, A.FZJ* ; Monkenbusch, M.FZJ* ; Willner, L.FZJ* ; Maiz, J. ; Mijangos, C. ; Arbe, A. ; Colmenero, J. ; Radulescu, A.FZJ* ; Holderer, O.FZJ* ; Ohl, M.FZJ* ; Richter, D.FZJ*

2013
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/5045  doi:10.1103/PhysRevLett.110.108303

Abstract: We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not glassy as heavily promoted in the literature. The polymer dynamics in confinement is, rather, determined by two phases, one fully equal to the bulk polymer and another that is partly anchored at the surface. By strong topological interaction, this phase confines further chains with no direct contact to the surface. These form the often invoked interphase, where the full chain relaxation is impeded through the interaction with the anchored chains.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Key Technologies (1st) ; Nano Science and Technology (1st) ; Soft Condensed Matter (2nd)

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Contributing Institute(s):

1. Neutronenstreuung (JCNS-1)
2. Neutronenstreuung (ICS-1)
3. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
4. JCNS-SNS (JCNS-SNS)

Research Program(s):

1. 451 - Soft Matter Composites (POF2-451) (POF2-451)

Experiment(s):

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

Appears in the scientific report 2013

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Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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