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Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties

It still remains a great challenge to endow polymer materials with multiple superior material properties by precise molecular design. Herein, we report a Diels–Alder (DA) based crosslinked polyacrylonitrile/graphene nanocomposite (PAN-DA/GR), which has multiple-responsive properties of shape memory,...

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Detalles Bibliográficos
Autores principales: Cai, Chenting, Zhang, Yue, Li, Mei, Chen, Yan, Zhang, Rongchun, Wang, Xiaoliang, Wu, Qiang, Chen, Tiehong, Sun, Pingchuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076983/
https://www.ncbi.nlm.nih.gov/pubmed/35540906
http://dx.doi.org/10.1039/c7ra11484b
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author Cai, Chenting
Zhang, Yue
Li, Mei
Chen, Yan
Zhang, Rongchun
Wang, Xiaoliang
Wu, Qiang
Chen, Tiehong
Sun, Pingchuan
author_facet Cai, Chenting
Zhang, Yue
Li, Mei
Chen, Yan
Zhang, Rongchun
Wang, Xiaoliang
Wu, Qiang
Chen, Tiehong
Sun, Pingchuan
author_sort Cai, Chenting
collection PubMed
description It still remains a great challenge to endow polymer materials with multiple superior material properties by precise molecular design. Herein, we report a Diels–Alder (DA) based crosslinked polyacrylonitrile/graphene nanocomposite (PAN-DA/GR), which has multiple-responsive properties of shape memory, self-healing, and reprocessing in addition to enhanced mechanical properties. The graphene sheets, which are well dispersed in the DA-based crosslinked PAN network, can act as intrinsic localized thermal sources by converting the absorbed external IR/microwave energies into heat, to trigger the glass transition for elasticity-based shape memory properties and retro-DA (rDA) reactions for healing. The incorporation of Diels–Alder bonds also gives the material solid state plasticity through topological network rearrangement, thus leading to versatile shape adaptability. Moreover, both regional shape control and targeted self-healing of the nanocomposites can be simply achieved by IR laser irradiation. Besides, the incorporation of a small amount of graphene can significantly improve the mechanical strength with respect to the DA-based crosslinked PAN. Both DSC and in situ variable temperature (13)C solid-state NMR experiments were used to monitor the reversible DA reactions.
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spelling pubmed-90769832022-05-09 Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties Cai, Chenting Zhang, Yue Li, Mei Chen, Yan Zhang, Rongchun Wang, Xiaoliang Wu, Qiang Chen, Tiehong Sun, Pingchuan RSC Adv Chemistry It still remains a great challenge to endow polymer materials with multiple superior material properties by precise molecular design. Herein, we report a Diels–Alder (DA) based crosslinked polyacrylonitrile/graphene nanocomposite (PAN-DA/GR), which has multiple-responsive properties of shape memory, self-healing, and reprocessing in addition to enhanced mechanical properties. The graphene sheets, which are well dispersed in the DA-based crosslinked PAN network, can act as intrinsic localized thermal sources by converting the absorbed external IR/microwave energies into heat, to trigger the glass transition for elasticity-based shape memory properties and retro-DA (rDA) reactions for healing. The incorporation of Diels–Alder bonds also gives the material solid state plasticity through topological network rearrangement, thus leading to versatile shape adaptability. Moreover, both regional shape control and targeted self-healing of the nanocomposites can be simply achieved by IR laser irradiation. Besides, the incorporation of a small amount of graphene can significantly improve the mechanical strength with respect to the DA-based crosslinked PAN. Both DSC and in situ variable temperature (13)C solid-state NMR experiments were used to monitor the reversible DA reactions. The Royal Society of Chemistry 2018-01-03 /pmc/articles/PMC9076983/ /pubmed/35540906 http://dx.doi.org/10.1039/c7ra11484b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Cai, Chenting
Zhang, Yue
Li, Mei
Chen, Yan
Zhang, Rongchun
Wang, Xiaoliang
Wu, Qiang
Chen, Tiehong
Sun, Pingchuan
Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title_full Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title_fullStr Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title_full_unstemmed Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title_short Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
title_sort multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076983/
https://www.ncbi.nlm.nih.gov/pubmed/35540906
http://dx.doi.org/10.1039/c7ra11484b
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