PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties

Compact polyelectrolyte complexes (COPECs), also named saloplastics, represent a new class of material with high fracture strain and self-healing properties. Here, COPECs based on poly(methacrylic acid) (PMAA) and poly(allylamine hydrochloride) (PAH) were prepared by centrifugation at pH 7. The infl...

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Main Authors:	Rydzek, Gaulthier, Pakdel, Amir, Witecka, Agnieszka, Awang Shri, Dayangku Noorfazidah, Gaudière, Fabien, Nicolosi, Valeria, Mokarian-Tabari, Parvaneh, Schaaf, Pierre, Boulmedais, Fouzia, Ariga, Katsuhiko
Format:	Article
Language:	English
Published:	American Chemical Society 2018
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/1/PH-Responsive%20saloplastics%20based%20on%20weak%20polyelectrolytes-%20From%20molecular%20processes.pdf

id	ump-22961
recordtype	eprints
spelling	ump-229612018-12-05T01:58:37Z http://umpir.ump.edu.my/id/eprint/22961/ PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties Rydzek, Gaulthier Pakdel, Amir Witecka, Agnieszka Awang Shri, Dayangku Noorfazidah Gaudière, Fabien Nicolosi, Valeria Mokarian-Tabari, Parvaneh Schaaf, Pierre Boulmedais, Fouzia Ariga, Katsuhiko TJ Mechanical engineering and machinery Compact polyelectrolyte complexes (COPECs), also named saloplastics, represent a new class of material with high fracture strain and self-healing properties. Here, COPECs based on poly(methacrylic acid) (PMAA) and poly(allylamine hydrochloride) (PAH) were prepared by centrifugation at pH 7. The influence of postassembly pH changes was monitored chemically by ATR-FTIR, ICP, DSC, and TGA, morphologically by SEM, and mechanically by strain to break measurements. Postassembly pH stimuli misbalanced the charge ratio in COPECs, impacting their concentration in counterions, cross-link density, and polymer chain mobility. At the material level, changes were observed in the porosity, composition, water content, and mechanical properties of COPECs. The cross-link density was a prominent factor governing the saloplastic's composition and water content. However, the porosity and mechanical properties were driven by several factors including salt-induced plasticization and conformational changes of polyelectrolytes. This work illustrates how multiple-scale consequences arise from a single change in the environment of COPECs, providing insights for future design of stimuli-responsive materials. American Chemical Society 2018 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/22961/1/PH-Responsive%20saloplastics%20based%20on%20weak%20polyelectrolytes-%20From%20molecular%20processes.pdf Rydzek, Gaulthier and Pakdel, Amir and Witecka, Agnieszka and Awang Shri, Dayangku Noorfazidah and Gaudière, Fabien and Nicolosi, Valeria and Mokarian-Tabari, Parvaneh and Schaaf, Pierre and Boulmedais, Fouzia and Ariga, Katsuhiko (2018) PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties. Macromolecules, 51 (12). pp. 4424-4434. ISSN 0024-9297 https://pubs.acs.org/doi/abs/10.1021/acs.macromol.8b00609 DOI: 10.1021/acs.macromol.8b00609
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Rydzek, Gaulthier Pakdel, Amir Witecka, Agnieszka Awang Shri, Dayangku Noorfazidah Gaudière, Fabien Nicolosi, Valeria Mokarian-Tabari, Parvaneh Schaaf, Pierre Boulmedais, Fouzia Ariga, Katsuhiko PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
description	Compact polyelectrolyte complexes (COPECs), also named saloplastics, represent a new class of material with high fracture strain and self-healing properties. Here, COPECs based on poly(methacrylic acid) (PMAA) and poly(allylamine hydrochloride) (PAH) were prepared by centrifugation at pH 7. The influence of postassembly pH changes was monitored chemically by ATR-FTIR, ICP, DSC, and TGA, morphologically by SEM, and mechanically by strain to break measurements. Postassembly pH stimuli misbalanced the charge ratio in COPECs, impacting their concentration in counterions, cross-link density, and polymer chain mobility. At the material level, changes were observed in the porosity, composition, water content, and mechanical properties of COPECs. The cross-link density was a prominent factor governing the saloplastic's composition and water content. However, the porosity and mechanical properties were driven by several factors including salt-induced plasticization and conformational changes of polyelectrolytes. This work illustrates how multiple-scale consequences arise from a single change in the environment of COPECs, providing insights for future design of stimuli-responsive materials.
format	Article
author	Rydzek, Gaulthier Pakdel, Amir Witecka, Agnieszka Awang Shri, Dayangku Noorfazidah Gaudière, Fabien Nicolosi, Valeria Mokarian-Tabari, Parvaneh Schaaf, Pierre Boulmedais, Fouzia Ariga, Katsuhiko
author_facet	Rydzek, Gaulthier Pakdel, Amir Witecka, Agnieszka Awang Shri, Dayangku Noorfazidah Gaudière, Fabien Nicolosi, Valeria Mokarian-Tabari, Parvaneh Schaaf, Pierre Boulmedais, Fouzia Ariga, Katsuhiko
author_sort	Rydzek, Gaulthier
title	PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
title_short	PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
title_full	PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
title_fullStr	PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
title_full_unstemmed	PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties
title_sort	ph-responsive saloplastics based on weak polyelectrolytes: from molecular processes to material scale properties
publisher	American Chemical Society
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/ http://umpir.ump.edu.my/id/eprint/22961/1/PH-Responsive%20saloplastics%20based%20on%20weak%20polyelectrolytes-%20From%20molecular%20processes.pdf
first_indexed	2023-09-18T22:34:11Z
last_indexed	2023-09-18T22:34:11Z
_version_	1777416485441896448

PH-Responsive saloplastics based on weak polyelectrolytes: From molecular processes to material scale properties

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