Title: Melt viscosities of lattice polymers using a Kramers potential treatment
Authors : Dürr, Oliver
Frisch, Harry
Dieterich, Wolfgang
Published in : The Journal of Chemical Physics
Volume(Issue) : 115
Pages : 9042
Pages to: 9045
Publisher / Ed. Institution : AIP Publishing
Issue Date: 11-Jun-2001
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Cond-mat
Subject (DDC) : 530: Physics
Abstract: Kramers relaxation times τK and relaxation times τR and τG for the end-to-end distances and for center-of-mass diffusion are calculated for dense systems of athermal lattice chains. τK is defined from the response of the radius of gyration to a Kramers potential which approximately describes the effect of a stationary shear flow. It is shown that within an intermediate range of chain lengths N the relaxation times τR and τK exhibit the same scaling with N, suggesting that N-dependent melt-viscosities for nonentangled chains can be obtained from the Kramers equilibrium concept.
Departement: School of Engineering
Organisational Unit: Institute of Data Analysis and Process Design (IDP)
Publication type: Article in scientific Journal
DOI : 10.1063/1.1412607
ISSN: 0021-9606
1089-7690
URI: https://digitalcollection.zhaw.ch/handle/11475/13873
Appears in Collections:Publikationen School of Engineering

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