Lentzakis, H, Das, C, Vlassopoulos, D et al. (1 more author) (2014) Pom-pom-like constitutive equations for comb polymers. Journal of Rheology, 58 (6). 1855 - 1875. ISSN 0148-6055
Abstract
In analogy with the pom-pom model, we introduce a simple model for comb polymers with multiple side-arms attached to a linear backbone by considering a set of coupled equations describing the stretch in the individual interbranch backbone segments. The stretch equations predict a sudden onset of backbone stretch as the flow rate is increased. Drag-strain coupling smooths this transition to some extent. For a series of well characterized polyisoprene and polystyrene combs, we find good agreement with the experimentally determined transient stress growth coefficients in uniaxial extension.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | (c)2014 The Society of Rheology. This is an author produced version of a paper published in Journal of Rheology. Uploaded in accordance with the publisher's self-archiving policy |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mathematics (Leeds) > Applied Mathematics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 20 Nov 2014 16:05 |
Last Modified: | 05 Nov 2017 18:18 |
Published Version: | http://dx.doi.org/10.1122/1.4895606 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1122/1.4895606 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81230 |