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Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength

Haibao Lu, Ziyu Xing, Mokarram Hossain Orcid Logo, Jinsong Leng

Smart Materials and Structures, Volume: 29, Issue: 8

Swansea University Author: Mokarram Hossain Orcid Logo

Abstract

Temperature-induced globule-to-coil transition in polymers has well been studied, and it is dependent strongly on temperature in their solutions due to significantly conformational changes of polymer molecules. In this study, a scaling framework is firstly developed to investigate stress-induced glo...

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Published in: Smart Materials and Structures
ISSN: 0964-1726 1361-665X
Published: IOP Publishing 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54526
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spelling 2020-08-17T10:17:55.2121931 v2 54526 2020-06-22 Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2020-06-22 GENG Temperature-induced globule-to-coil transition in polymers has well been studied, and it is dependent strongly on temperature in their solutions due to significantly conformational changes of polymer molecules. In this study, a scaling framework is firstly developed to investigate stress-induced globule-to-coil transition in double-network (DN) hydrogels with an ultra-high stretchable strength. Free energy and globule radius functions are introduced to formulate the constitutive relationship of the DN hydrogels, in which stress-induced swelling and globule-to-coil transition are described for the hydrotropic and relatively hydrophobic networks, respectively. A cooperative free energy model based on the Flory-Huggins solution theory is then proposed for the DN hydrogels. The effectiveness of model is demonstrated by applying it to predict stress-induced globule-to-coil transitions in DN hydrogels and elastomers, where the theoretical results show good agreements with the experimental ones. We expect this study explores the scaling dynamics and provides an effective guidance on designing advanced ultra-high mechanical performance in DN hydrogel and elastomer. Journal Article Smart Materials and Structures 29 8 IOP Publishing 0964-1726 1361-665X double-network hydrogel, globule-coil transition, cooperative dynamics 21 7 2020 2020-07-21 10.1088/1361-665x/ab9e0c COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University 2020-08-17T10:17:55.2121931 2020-06-22T09:41:31.9002250 Haibao Lu 1 Ziyu Xing 2 Mokarram Hossain 0000-0002-4616-1104 3 Jinsong Leng 4 54526__17551__25852ce90f134c32b9b927d99981ae3c.pdf 54526.pdf 2020-06-22T09:43:18.2272064 Output 932374 application/pdf Accepted Manuscript true 2021-06-18T00:00:00.0000000 Released under the terms of a CC-BY-NC-ND 3.0 licence. true English
title Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
spellingShingle Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
Mokarram Hossain
title_short Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
title_full Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
title_fullStr Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
title_full_unstemmed Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
title_sort Scaling dynamics of globule-to-coil phase transition in double-network hydrogel with ultra-high stretchable strength
author_id_str_mv 140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv 140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author Mokarram Hossain
author2 Haibao Lu
Ziyu Xing
Mokarram Hossain
Jinsong Leng
format Journal article
container_title Smart Materials and Structures
container_volume 29
container_issue 8
publishDate 2020
institution Swansea University
issn 0964-1726
1361-665X
doi_str_mv 10.1088/1361-665x/ab9e0c
publisher IOP Publishing
document_store_str 1
active_str 0
description Temperature-induced globule-to-coil transition in polymers has well been studied, and it is dependent strongly on temperature in their solutions due to significantly conformational changes of polymer molecules. In this study, a scaling framework is firstly developed to investigate stress-induced globule-to-coil transition in double-network (DN) hydrogels with an ultra-high stretchable strength. Free energy and globule radius functions are introduced to formulate the constitutive relationship of the DN hydrogels, in which stress-induced swelling and globule-to-coil transition are described for the hydrotropic and relatively hydrophobic networks, respectively. A cooperative free energy model based on the Flory-Huggins solution theory is then proposed for the DN hydrogels. The effectiveness of model is demonstrated by applying it to predict stress-induced globule-to-coil transitions in DN hydrogels and elastomers, where the theoretical results show good agreements with the experimental ones. We expect this study explores the scaling dynamics and provides an effective guidance on designing advanced ultra-high mechanical performance in DN hydrogel and elastomer.
published_date 2020-07-21T04:09:11Z
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score 10.897746