This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1039/b807192f in citations.
Anomalous Relaxation od Self Assembled Alkyl-Nanodomains in higher order Poly(n-Alkyl Metacrylates)
Anomalous Relaxation od Self Assembled Alkyl-Nanodomains in higher order Poly(n-Alkyl Metacrylates)
We have exploited the selectivity of neutron scattering combined with isotopic substitution to study the structure and dynamics of poly(n-alkyl methacrylates). Our diffraction data strongly support the suggested nanosegregation of main-chains and side groups. Moreover, we have been able to separatel...
Saved in:
Personal Name(s): | Arbe, A. |
---|---|
Genix, A.-C. / Colmenero, J. / Richter, D. | |
Contributing Institute: |
JCNS; JCNS Streumethoden; IFF-4 Neutronenstreuung; IFF-5 |
Published in: | Soft matter, 4 (2008) S. 1792 - 1795 |
Imprint: |
Cambridge
Royal Society of Chemistry (RSC)
2008
|
Physical Description: |
1792 - 1795 |
DOI: |
10.1039/b807192f |
Document Type: |
Journal Article |
Research Program: |
Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) Kondensierte Materie |
Series Title: |
Soft Matter
4 |
Subject (ZB): | |
Publikationsportal JuSER |
We have exploited the selectivity of neutron scattering combined with isotopic substitution to study the structure and dynamics of poly(n-alkyl methacrylates). Our diffraction data strongly support the suggested nanosegregation of main-chains and side groups. Moreover, we have been able to separately follow the dynamics of both subsystems at a molecular scale. While the structural relaxation observed at the main-chain level is standard, for high-order members the correlations involving side groups within the alkyl nanodomains relax through an exotic logarithmic decay. In these polymers, a strong dynamic asymmetry also develops. We discuss possible theoretical frameworks for the anomalous relaxation observed. |