N. Clarke
Chain Deformation in Entangled Polymer Melts at Re-entrant Corners
Clarke, N.; De Luca, E.; Buxton, G.; Hutchings, L.R.; Gough, T.; Grillo, I.; Graham, R.S.; Jagannathan, K.; Klein, D.H.; McLeish, T.C.B.
Authors
E. De Luca
G. Buxton
Lian Hutchings l.r.hutchings@durham.ac.uk
Academic Visitor
T. Gough
I. Grillo
R.S. Graham
K. Jagannathan
D.H. Klein
T.C.B. McLeish
Abstract
Using SANS to map the deformation of individual polymer chains in the vicinity of re-entrant corners in a contraction−expansion flow, we show that stress singularities at such corners, predicted by formulations of fluid dynamics that lack a molecular basis, do not cause extreme deformation of the chains. Multiscale modeling based on a nonlinear tube theory incorporating appropriate relaxation processes quantitatively reproduces the observed scattering, thus providing further evidence for the universality of the tube model for polymer flow.
Citation
Clarke, N., De Luca, E., Buxton, G., Hutchings, L., Gough, T., Grillo, I., …McLeish, T. (2010). Chain Deformation in Entangled Polymer Melts at Re-entrant Corners. Macromolecules, 43(3), 1539-1542. https://doi.org/10.1021/ma902324f
Journal Article Type | Article |
---|---|
Publication Date | Feb 1, 2010 |
Deposit Date | Oct 31, 2011 |
Journal | Macromolecules |
Print ISSN | 0024-9297 |
Electronic ISSN | 1520-5835 |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 43 |
Issue | 3 |
Pages | 1539-1542 |
DOI | https://doi.org/10.1021/ma902324f |
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