Transient forces and non-equilibrium states in sheared polymer networks

J.H.B. Sprakel, J.T. Padding, W.J. Briels

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

The response of many soft materials to external fields is dominated by transient forces, which arise from memory of the configurations the system has undergone in the past. Using large-scale particle-based simulations we show that these transient forces lead to a rich non-equilibrium behavior in networks of soft polymeric particles or polymer-engrafted colloids. We compute the diagram of states for an experimental system of network-forming associative polymers and show viscoelastic instabilities such as shear banding, melt fracture and a shear-induced disorder-order transition.
LanguageEnglish
Article number58003
Number of pages6
JournalEurophysics Letters
Volume93
Issue number5
DOIs
Publication statusPublished - 2011

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shear
polymers
colloids
diagrams
disorders
configurations
simulation

Keywords

  • simulations

Cite this

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Transient forces and non-equilibrium states in sheared polymer networks. / Sprakel, J.H.B.; Padding, J.T.; Briels, W.J.

In: Europhysics Letters, Vol. 93, No. 5, 58003, 2011.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Sprakel, J.H.B.

AU - Padding, J.T.

AU - Briels, W.J.

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AB - The response of many soft materials to external fields is dominated by transient forces, which arise from memory of the configurations the system has undergone in the past. Using large-scale particle-based simulations we show that these transient forces lead to a rich non-equilibrium behavior in networks of soft polymeric particles or polymer-engrafted colloids. We compute the diagram of states for an experimental system of network-forming associative polymers and show viscoelastic instabilities such as shear banding, melt fracture and a shear-induced disorder-order transition.

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U2 - 10.1209/0295-5075/93/58003

DO - 10.1209/0295-5075/93/58003

M3 - Article

VL - 93

JO - Europhysics Letters

T2 - Europhysics Letters

JF - Europhysics Letters

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