TY  - JOUR
AU  - Muresan, A. S.
AU  - Dubbeldam, J. L. A.
AU  - Kautz, H.
AU  - Monkenbusch, M.
AU  - Sijbesma, R. P.
AU  - van der Schoot, P.
AU  - de Jeu, W.H.
TI  - Dynamic heterogeneity in hydrogen-bonded polymers
JO  - Physical review / E
VL  - 74
IS  - 3
SN  - 1539-3755
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-52770
SP  - 031804
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - We report on neutron spin echo experiments on hydrogen-bonded polymers and compare the experimentally found dynamical structure factor with theoretical predictions. Surprisingly, we find that in the melt phase the expected scaling of the Rouse dynamics is not satisfied. We propose an explanation based upon the large spatial volume occupied by the connecting groups. When the effects of these bulky groups on the local friction are taken into account, the usual scaling behavior is restored.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000240870100085
DO  - DOI:10.1103/PhysRevE.74.031804
UR  - https://juser.fz-juelich.de/record/52770
ER  -