Cargando…

Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature

As stiff polymers are difficult to self-heal, the balance between polymers’ self-healing ability and mechanical properties is always a big challenge. Herein, we have developed a novel healable stiff polymer based on the Si-OR and Si-OSi dynamic covalent bonds. The self-healing mechanism was tested a...

Descripción completa

Detalles Bibliográficos
Autores principales: Fan, Ping, Xue, Can, Zhou, Xiantai, Yang, Zujin, Ji, Hongbing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8160654/
https://www.ncbi.nlm.nih.gov/pubmed/34065375
http://dx.doi.org/10.3390/ma14102680
_version_ 1783700329147138048
author Fan, Ping
Xue, Can
Zhou, Xiantai
Yang, Zujin
Ji, Hongbing
author_facet Fan, Ping
Xue, Can
Zhou, Xiantai
Yang, Zujin
Ji, Hongbing
author_sort Fan, Ping
collection PubMed
description As stiff polymers are difficult to self-heal, the balance between polymers’ self-healing ability and mechanical properties is always a big challenge. Herein, we have developed a novel healable stiff polymer based on the Si-OR and Si-OSi dynamic covalent bonds. The self-healing mechanism was tested and proved by the small molecule model experiments and the contrast experiments of polymers. This polymer possesses excellent tensile, bending properties as well as room temperature self-healing abilities. Moreover, due to the sticky and shapeable properties under wetting conditions, the polymer could be used as an adhesive. Besides, even after four cycles of recycling, the polymer maintains its original properties, which meets the requirements of recyclable materials. It was demonstrated that the polymer exhibits potential application in some fields, such as recyclable materials and healable adhesives.
format Online
Article
Text
id pubmed-8160654
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-81606542021-05-29 Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature Fan, Ping Xue, Can Zhou, Xiantai Yang, Zujin Ji, Hongbing Materials (Basel) Communication As stiff polymers are difficult to self-heal, the balance between polymers’ self-healing ability and mechanical properties is always a big challenge. Herein, we have developed a novel healable stiff polymer based on the Si-OR and Si-OSi dynamic covalent bonds. The self-healing mechanism was tested and proved by the small molecule model experiments and the contrast experiments of polymers. This polymer possesses excellent tensile, bending properties as well as room temperature self-healing abilities. Moreover, due to the sticky and shapeable properties under wetting conditions, the polymer could be used as an adhesive. Besides, even after four cycles of recycling, the polymer maintains its original properties, which meets the requirements of recyclable materials. It was demonstrated that the polymer exhibits potential application in some fields, such as recyclable materials and healable adhesives. MDPI 2021-05-20 /pmc/articles/PMC8160654/ /pubmed/34065375 http://dx.doi.org/10.3390/ma14102680 Text en © 2021 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 Communication
Fan, Ping
Xue, Can
Zhou, Xiantai
Yang, Zujin
Ji, Hongbing
Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title_full Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title_fullStr Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title_full_unstemmed Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title_short Dynamic Covalent Bonds of Si-OR and Si-OSi Enabled A Stiff Polymer to Heal and Recycle at Room Temperature
title_sort dynamic covalent bonds of si-or and si-osi enabled a stiff polymer to heal and recycle at room temperature
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8160654/
https://www.ncbi.nlm.nih.gov/pubmed/34065375
http://dx.doi.org/10.3390/ma14102680
work_keys_str_mv AT fanping dynamiccovalentbondsofsiorandsiosienabledastiffpolymertohealandrecycleatroomtemperature
AT xuecan dynamiccovalentbondsofsiorandsiosienabledastiffpolymertohealandrecycleatroomtemperature
AT zhouxiantai dynamiccovalentbondsofsiorandsiosienabledastiffpolymertohealandrecycleatroomtemperature
AT yangzujin dynamiccovalentbondsofsiorandsiosienabledastiffpolymertohealandrecycleatroomtemperature
AT jihongbing dynamiccovalentbondsofsiorandsiosienabledastiffpolymertohealandrecycleatroomtemperature