Das, C, Read, DJ, Auhl, D et al. (4 more authors) (2014) Numerical prediction of nonlinear rheology of branched polymer melts. Journal of Rheology, 58 (3). 737 - 757 (21). ISSN 0148-6055
Abstract
In a recent short communication [Read, D. J. et al., Science 333, 1871 (2011)], we showed that a computational scheme can describe the nonlinear flow properties for a series of industrial lowdensity polyethylene (LDPE) resins starting from the molecular architecture. The molecular architecture itself is determined by fitting parameters of a reaction kinetics model to average structural information obtained from gel-permeation chromatography and light scattering. Flow responses of these molecules in transient uniaxial extension and shear are calculated by mapping the stretch and orientation dynamics of the segments within the molecules to effective pom-pom modes. In this paper, we provide the details of the computational scheme and present additional results on a LDPE and a high-density polyethylene resin to illustrate the dependence of segmental maximum stretch variables on the flow rate.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014, American Institute of Physics . 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: |
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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: | 03 Apr 2014 11:36 |
Last Modified: | 03 Apr 2014 11:36 |
Published Version: | http://dx.doi.org/10.1122/1.4869485 |
Status: | Published |
Publisher: | American Institute of Physics |
Refereed: | Yes |
Identification Number: | 10.1122/1.4869485 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:78378 |