Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy

We present in-situ neutron spin echo measurements on an entangled polydimethylsiloxane melt under shear and demonstrate the ability to monitor nano-scale dynamics in flowing liquids. We report no changes in the topological interactions of the chains for shear rates approaching the inverse longest re...

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Autores principales: Kawecki, Maciej, A. Adlmann, Franz, Gutfreund, Philipp, Falus, Peter, Uhrig, David, Gupta, Sudipta, Farago, Bela, Zolnierczuk, Piotr, Cochran, Malcom, Wolff, Max
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391414/
https://www.ncbi.nlm.nih.gov/pubmed/30808946
http://dx.doi.org/10.1038/s41598-019-39437-2
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author Kawecki, Maciej
A. Adlmann, Franz
Gutfreund, Philipp
Falus, Peter
Uhrig, David
Gupta, Sudipta
Farago, Bela
Zolnierczuk, Piotr
Cochran, Malcom
Wolff, Max
author_facet Kawecki, Maciej
A. Adlmann, Franz
Gutfreund, Philipp
Falus, Peter
Uhrig, David
Gupta, Sudipta
Farago, Bela
Zolnierczuk, Piotr
Cochran, Malcom
Wolff, Max
author_sort Kawecki, Maciej
collection PubMed
description We present in-situ neutron spin echo measurements on an entangled polydimethylsiloxane melt under shear and demonstrate the ability to monitor nano-scale dynamics in flowing liquids. We report no changes in the topological interactions of the chains for shear rates approaching the inverse longest relaxation time. Further experiments following along this line will allow to systematically test the predictions of theories, like e.g. convective constraint release.
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spelling pubmed-63914142019-02-28 Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy Kawecki, Maciej A. Adlmann, Franz Gutfreund, Philipp Falus, Peter Uhrig, David Gupta, Sudipta Farago, Bela Zolnierczuk, Piotr Cochran, Malcom Wolff, Max Sci Rep Article We present in-situ neutron spin echo measurements on an entangled polydimethylsiloxane melt under shear and demonstrate the ability to monitor nano-scale dynamics in flowing liquids. We report no changes in the topological interactions of the chains for shear rates approaching the inverse longest relaxation time. Further experiments following along this line will allow to systematically test the predictions of theories, like e.g. convective constraint release. Nature Publishing Group UK 2019-02-26 /pmc/articles/PMC6391414/ /pubmed/30808946 http://dx.doi.org/10.1038/s41598-019-39437-2 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kawecki, Maciej
A. Adlmann, Franz
Gutfreund, Philipp
Falus, Peter
Uhrig, David
Gupta, Sudipta
Farago, Bela
Zolnierczuk, Piotr
Cochran, Malcom
Wolff, Max
Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title_full Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title_fullStr Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title_full_unstemmed Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title_short Direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
title_sort direct measurement of topological interactions in polymers under shear using neutron spin echo spectroscopy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391414/
https://www.ncbi.nlm.nih.gov/pubmed/30808946
http://dx.doi.org/10.1038/s41598-019-39437-2
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