uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dynamical structure of entangled polymers simulated under shear flow
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. Inst Laue Langevin, 71 Rue Martyrs, F-38000 Grenoble, France.ORCID iD: 0000-0001-7904-5639
Inst Laue Langevin, 71 Rue Martyrs, F-38000 Grenoble, France.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-7517-8204
2018 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 149, no 7, article id 074901Article in journal (Refereed) Published
Abstract [en]

The non-linear response of entangled polymers to shear flow is complicated. Its current understanding is framed mainly as a rheological description in terms of the complex viscosity. However, the full picture requires an assessment of the dynamical structure of individual polymer chains which give rise to the macroscopic observables. Here we shed new light on this problem, using a computer simulation based on a blob model, extended to describe shear flow in polymer melts and semi-dilute solutions. We examine the diffusion and the intermediate scattering spectra during a steady shear flow. The relaxation dynamics are found to speed up along the flow direction, but slow down along the shear gradient direction. The third axis, vorticity, shows a slowdown at the short scale of a tube, but reaches a net speedup at the large scale of the chain radius of gyration.

Place, publisher, year, edition, pages
AMER INST PHYSICS , 2018. Vol. 149, no 7, article id 074901
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-364390DOI: 10.1063/1.5035170ISI: 000442425200069PubMedID: 30134722OAI: oai:DiVA.org:uu-364390DiVA, id: diva2:1260462
Funder
Swedish Research Council, CTS 16:519Carl Tryggers foundation , CTS 16:519Available from: 2018-11-02 Created: 2018-11-02 Last updated: 2018-11-02Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Authority records BETA

Korolkovas, AiridasWolff, Max

Search in DiVA

By author/editor
Korolkovas, AiridasWolff, Max
By organisation
Materials Physics
In the same journal
Journal of Chemical Physics
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 18 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf