TY  - JOUR
AU  - Krutyeva, Margarita
AU  - Wischnewski, Andreas
AU  - Monkenbusch, Michael
AU  - Willner, Lutz
AU  - Maiz, J.
AU  - Mijangos, C.
AU  - Arbe, A.
AU  - Colmenero, J.
AU  - Radulescu, Aurel
AU  - Holderer, Olaf
AU  - Ohl, Michael
AU  - Richter, Dieter
TI  - Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases
JO  - Physical review letters
VL  - 110
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2013-01513
SP  - 108303
PY  - 2013
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000315744700028
DO  - DOI:10.1103/PhysRevLett.110.108303
UR  - https://juser.fz-juelich.de/record/132944
ER  -