| Issue |
Europhys. Lett.
Volume 45, Number 4, February II 1999
|
|
|---|---|---|
| Page(s) | 488 - 494 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00193-6 | |
| Published online | 01 September 2002 | |
On the dynamics of polymer melts: Contribution of Rouse and bending modes
Abteilung Theoretische Physik, Universität Ulm - 89069 Ulm, Germany
Received:
14
September
1998
Accepted:
11
December
1998
The influence of molecular stiffness on the dynamic properties of polymer melts is investigated analytically. It is shown that the relaxation times characterizing the internal dynamics of the polymer chains exhibit a crossover from Rouse to bending modes with increasing mode number. As a consequence the mean square displacement of monomers and the dynamic structure factor are strongly influenced by the molecular stiffness. The comparison of both equilibrium and dynamical properties of n-alkane chains in a melt with recent molecular dynamics simulations and neutron scattering experiments exhibits excellent agreement.
PACS: 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.