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Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends

The development of high-performance polymer membranes has sparked a lot of attention in recent years. Polymer blending is a potential method of modification. A limitation, however, is the compatibility of blends at the molecular level. In this investigation, polyethersulfone/polyetherimide hollow fi...

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Detalles Bibliográficos
Autores principales: Zhu, Yuanlu, Wu, Weixing, Gao, Ming, Yan, Jiangyi, Wang, Beifu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370605/
https://www.ncbi.nlm.nih.gov/pubmed/35956562
http://dx.doi.org/10.3390/polym14153046
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author Zhu, Yuanlu
Wu, Weixing
Gao, Ming
Yan, Jiangyi
Wang, Beifu
author_facet Zhu, Yuanlu
Wu, Weixing
Gao, Ming
Yan, Jiangyi
Wang, Beifu
author_sort Zhu, Yuanlu
collection PubMed
description The development of high-performance polymer membranes has sparked a lot of attention in recent years. Polymer blending is a potential method of modification. A limitation, however, is the compatibility of blends at the molecular level. In this investigation, polyethersulfone/polyetherimide hollow fiber membranes were prepared by the solution blending method. Compatibility, hydrogen bonding, crystallinity, microstructure, hydrophilicity, mechanical properties, and transmissibility of blended membranes were also characterized. The compatibility and hydrogen bonding action of the two components were confirmed by DSC, FTIR, XPS, and XRD. The structure exhibits a C−H···O interaction motif with the sulfone group acting as a hydrogen bond acceptor from a methyl C−H donor. The π–π stacking between the two polymers arranged molecules more orderly, resulting in enhanced intermolecular interactions. Compared to polyethersulfone hollow fiber membranes, the hydrophilic, mechanical properties, and rejection rate of the blended membranes are more effectively enhanced. Self-assembly of the host polymer with a polymer capable of forming hydrogen bonds to construct controllable blends is a crucial and proven method.
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spelling pubmed-93706052022-08-12 Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends Zhu, Yuanlu Wu, Weixing Gao, Ming Yan, Jiangyi Wang, Beifu Polymers (Basel) Article The development of high-performance polymer membranes has sparked a lot of attention in recent years. Polymer blending is a potential method of modification. A limitation, however, is the compatibility of blends at the molecular level. In this investigation, polyethersulfone/polyetherimide hollow fiber membranes were prepared by the solution blending method. Compatibility, hydrogen bonding, crystallinity, microstructure, hydrophilicity, mechanical properties, and transmissibility of blended membranes were also characterized. The compatibility and hydrogen bonding action of the two components were confirmed by DSC, FTIR, XPS, and XRD. The structure exhibits a C−H···O interaction motif with the sulfone group acting as a hydrogen bond acceptor from a methyl C−H donor. The π–π stacking between the two polymers arranged molecules more orderly, resulting in enhanced intermolecular interactions. Compared to polyethersulfone hollow fiber membranes, the hydrophilic, mechanical properties, and rejection rate of the blended membranes are more effectively enhanced. Self-assembly of the host polymer with a polymer capable of forming hydrogen bonds to construct controllable blends is a crucial and proven method. MDPI 2022-07-27 /pmc/articles/PMC9370605/ /pubmed/35956562 http://dx.doi.org/10.3390/polym14153046 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhu, Yuanlu
Wu, Weixing
Gao, Ming
Yan, Jiangyi
Wang, Beifu
Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title_full Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title_fullStr Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title_full_unstemmed Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title_short Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends
title_sort molecular compatibility and hydrogen bonding mechanism of pes/pei blends
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370605/
https://www.ncbi.nlm.nih.gov/pubmed/35956562
http://dx.doi.org/10.3390/polym14153046
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