This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.104.197801 in citations.
Please use the identifier: http://hdl.handle.net/2128/7237 in citations.
Direct Observation of confined Single Chain Dynamics by Neutron Scattering
Direct Observation of confined Single Chain Dynamics by Neutron Scattering
Neutron spin echo has revealed the single chain dynamic structure factor of entangled polymer chains confined in cylindrical nanopores with chain dimensions either much larger or smaller than the lateral pore sizes. In both situations, a slowing down of the dynamics with respect to the bulk behavior...
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Personal Name(s): | Martin, J. |
---|---|
Krutyeva, M. / Monkenbusch, M. / Arbe, A. / Allgaier, J. / Radulescu, A. / Falus, P. / Maiz, J. / Mijangos, C. / Colmenero, J. / Richter, D. | |
Contributing Institute: |
JCNS; JCNS Neutronenstreuung; IFF-5 Streumethoden; IFF-4 |
Published in: | Physical review letters, 104 (2010) S. 197801 |
Imprint: |
College Park, Md.
APS
2010
|
Physical Description: |
197801 |
DOI: |
10.1103/PhysRevLett.104.197801 |
Document Type: |
Journal Article |
Research Program: |
Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |
Series Title: |
Physical Review Letters
104 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7237 in citations.
Neutron spin echo has revealed the single chain dynamic structure factor of entangled polymer chains confined in cylindrical nanopores with chain dimensions either much larger or smaller than the lateral pore sizes. In both situations, a slowing down of the dynamics with respect to the bulk behavior is only observed at intermediate times. The results at long times provide a direct microscopic measurement of the entanglement distance under confinement. They constitute the first experimental microscopic evidence of the dilution of the total entanglement density in a polymer melt under strong confinement, a phenomenon that so far was hypothesized on the basis of various macroscopic observations. |