No / 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.
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/5933 |
| Date | January 2010 |
| Creators | Clarke, N.C., De Luca, E., Buxton, G., Hutchings, L.R., Gough, Tim, Grillo, I., Graham, R.S., Jagannathan, K., Klein, D.H., McLeish, T.C.B. |
| Source Sets | Bradford Scholars |
| Detected Language | English |
| Type | Article, No full-text in the repository |
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