Результаты исследований: Научные публикации в периодических изданиях › статья
Local orientational mobility in regular hyperbranched polymers. / Dolgushev, M.; Markelov, D.A.; Fürstenberg, F.; Guérin, T.
в: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Том 94, № 1, 2016.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Local orientational mobility in regular hyperbranched polymers
AU - Dolgushev, M.
AU - Markelov, D.A.
AU - Fürstenberg, F.
AU - Guérin, T.
PY - 2016
Y1 - 2016
N2 - ©2016 American Physical Society.We study the dynamics of local bond orientation in regular hyperbranched polymers modeled by Vicsek fractals. The local dynamics is investigated through the temporal autocorrelation functions of single bonds and the corresponding relaxation forms of the complex dielectric susceptibility. We show that the dynamic behavior of single segments depends on their remoteness from the periphery rather than on the size of the whole macromolecule. Remarkably, the dynamics of the core segments (which are most remote from the periphery) shows a scaling behavior that differs from the dynamics obtained after structural average. We analyze the most relevant processes of single segment motion and provide an analytic approximation for the corresponding relaxation times. Furthermore, we describe an iterative method to calculate the orientational dynamics in the case of very large macromolecular sizes.
AB - ©2016 American Physical Society.We study the dynamics of local bond orientation in regular hyperbranched polymers modeled by Vicsek fractals. The local dynamics is investigated through the temporal autocorrelation functions of single bonds and the corresponding relaxation forms of the complex dielectric susceptibility. We show that the dynamic behavior of single segments depends on their remoteness from the periphery rather than on the size of the whole macromolecule. Remarkably, the dynamics of the core segments (which are most remote from the periphery) shows a scaling behavior that differs from the dynamics obtained after structural average. We analyze the most relevant processes of single segment motion and provide an analytic approximation for the corresponding relaxation times. Furthermore, we describe an iterative method to calculate the orientational dynamics in the case of very large macromolecular sizes.
U2 - 10.1103/PhysRevE.94.012502
DO - 10.1103/PhysRevE.94.012502
M3 - Article
VL - 94
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
SN - 1539-3755
IS - 1
ER -
ID: 7927282