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Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing
Understanding how microscopic rearrangements manifest in macroscopic flow responses is one of the central goals of nonlinear rheological studies. Using the sequence-of-physical-processes framework, we present a natural 3D structure–rheology space that temporally correlates the structural and nonline...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680679/ https://www.ncbi.nlm.nih.gov/pubmed/31315259 http://dx.doi.org/10.3390/polym11071189 |
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author | Lee, Johnny Ching-Wei Porcar, Lionel Rogers, Simon A. |
author_facet | Lee, Johnny Ching-Wei Porcar, Lionel Rogers, Simon A. |
author_sort | Lee, Johnny Ching-Wei |
collection | PubMed |
description | Understanding how microscopic rearrangements manifest in macroscopic flow responses is one of the central goals of nonlinear rheological studies. Using the sequence-of-physical-processes framework, we present a natural 3D structure–rheology space that temporally correlates the structural and nonlinear viscoelastic parameters. Exploiting the rheo-small-angle neutron scattering (rheo-SANS) techniques, we demonstrate the use of the framework with a model system of polymer-like micelles (PLMs), where we unveil a sequence of microscopic events that micelles experience under dynamic shearing across a range of frequencies. The least-aligned state of the PLMs is observed to migrate from the total strain extreme toward zero strain with increasing frequency. Our proposed 3D space is generic, and can be equally applied to other soft materials under any sort of deformation, such as startup shear or uniaxial extension. This work therefore provides a natural approach for researchers to study complex out-of-equilibrium structure–rheology relationships of soft materials. |
format | Online Article Text |
id | pubmed-6680679 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66806792019-08-09 Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing Lee, Johnny Ching-Wei Porcar, Lionel Rogers, Simon A. Polymers (Basel) Article Understanding how microscopic rearrangements manifest in macroscopic flow responses is one of the central goals of nonlinear rheological studies. Using the sequence-of-physical-processes framework, we present a natural 3D structure–rheology space that temporally correlates the structural and nonlinear viscoelastic parameters. Exploiting the rheo-small-angle neutron scattering (rheo-SANS) techniques, we demonstrate the use of the framework with a model system of polymer-like micelles (PLMs), where we unveil a sequence of microscopic events that micelles experience under dynamic shearing across a range of frequencies. The least-aligned state of the PLMs is observed to migrate from the total strain extreme toward zero strain with increasing frequency. Our proposed 3D space is generic, and can be equally applied to other soft materials under any sort of deformation, such as startup shear or uniaxial extension. This work therefore provides a natural approach for researchers to study complex out-of-equilibrium structure–rheology relationships of soft materials. MDPI 2019-07-16 /pmc/articles/PMC6680679/ /pubmed/31315259 http://dx.doi.org/10.3390/polym11071189 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lee, Johnny Ching-Wei Porcar, Lionel Rogers, Simon A. Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title | Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title_full | Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title_fullStr | Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title_full_unstemmed | Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title_short | Unveiling Temporal Nonlinear Structure–Rheology Relationships under Dynamic Shearing |
title_sort | unveiling temporal nonlinear structure–rheology relationships under dynamic shearing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680679/ https://www.ncbi.nlm.nih.gov/pubmed/31315259 http://dx.doi.org/10.3390/polym11071189 |
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