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Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications

[Image: see text] Transparent wood (TW)-based composites are of significant interest for smart window applications. In this research, we demonstrate a facile dual-stimuli-responsive chromic TW where optical properties are reversibly controlled in response to changes in temperature and UV-radiation....

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Autores principales: Samanta, Archana, Chen, Hui, Samanta, Pratick, Popov, Sergei, Sychugov, Ilya, Berglund, Lars A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7821267/
https://www.ncbi.nlm.nih.gov/pubmed/33415982
http://dx.doi.org/10.1021/acsami.0c21369
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author Samanta, Archana
Chen, Hui
Samanta, Pratick
Popov, Sergei
Sychugov, Ilya
Berglund, Lars A.
author_facet Samanta, Archana
Chen, Hui
Samanta, Pratick
Popov, Sergei
Sychugov, Ilya
Berglund, Lars A.
author_sort Samanta, Archana
collection PubMed
description [Image: see text] Transparent wood (TW)-based composites are of significant interest for smart window applications. In this research, we demonstrate a facile dual-stimuli-responsive chromic TW where optical properties are reversibly controlled in response to changes in temperature and UV-radiation. For this functionality, bleached wood was impregnated with solvent-free thiol and ene monomers containing chromic components, consisting of a mixture of thermo- and photoresponsive chromophores, and was then UV-polymerized. Independent optical properties of individual chromic components were retained in the compositional mixture. This allowed to enhance the absolute optical transmission to 4 times above the phase change temperature. At the same time, the transmission at 550 nm could be reduced 11−77%, on exposure to UV by changing the concentration of chromic components. Chromic components were localized inside the lumen of the wood structure, and durable reversible optical properties were demonstrated by multiple cycling testing. In addition, the chromic TW composites showed reversible energy absorption capabilities for heat storage applications and demonstrated an enhancement of 64% in the tensile modulus as compared to a native thiol–ene polymer. This study elucidates the polymerization process and effect of chromic components distribution and composition on the material’s performance and perspectives toward the development of smart photoresponsive windows with energy storage capabilities.
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spelling pubmed-78212672021-01-25 Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications Samanta, Archana Chen, Hui Samanta, Pratick Popov, Sergei Sychugov, Ilya Berglund, Lars A. ACS Appl Mater Interfaces [Image: see text] Transparent wood (TW)-based composites are of significant interest for smart window applications. In this research, we demonstrate a facile dual-stimuli-responsive chromic TW where optical properties are reversibly controlled in response to changes in temperature and UV-radiation. For this functionality, bleached wood was impregnated with solvent-free thiol and ene monomers containing chromic components, consisting of a mixture of thermo- and photoresponsive chromophores, and was then UV-polymerized. Independent optical properties of individual chromic components were retained in the compositional mixture. This allowed to enhance the absolute optical transmission to 4 times above the phase change temperature. At the same time, the transmission at 550 nm could be reduced 11−77%, on exposure to UV by changing the concentration of chromic components. Chromic components were localized inside the lumen of the wood structure, and durable reversible optical properties were demonstrated by multiple cycling testing. In addition, the chromic TW composites showed reversible energy absorption capabilities for heat storage applications and demonstrated an enhancement of 64% in the tensile modulus as compared to a native thiol–ene polymer. This study elucidates the polymerization process and effect of chromic components distribution and composition on the material’s performance and perspectives toward the development of smart photoresponsive windows with energy storage capabilities. American Chemical Society 2021-01-08 2021-01-20 /pmc/articles/PMC7821267/ /pubmed/33415982 http://dx.doi.org/10.1021/acsami.0c21369 Text en © 2021 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Samanta, Archana
Chen, Hui
Samanta, Pratick
Popov, Sergei
Sychugov, Ilya
Berglund, Lars A.
Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title_full Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title_fullStr Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title_full_unstemmed Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title_short Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications
title_sort reversible dual-stimuli-responsive chromic transparent wood biocomposites for smart window applications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7821267/
https://www.ncbi.nlm.nih.gov/pubmed/33415982
http://dx.doi.org/10.1021/acsami.0c21369
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