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Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography

Tannin-furanic rigid foams are bio-based copolymers of tannin plant extract and furfuryl alcohol, promising candidates to replace synthetic insulation foams, as for example polyurethanes and phenolics, in eco-sustainable buildings thanks to their functional properties, such as lightness of the mater...

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Autores principales: Cefarin, Nicola, Bedolla, Diana E., Surowka, Artur, Donato, Sandro, Sepperer, Thomas, Tondi, Gianluca, Dreossi, Diego, Sodini, Nicola, Birarda, Giovanni, Vaccari, Lisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658003/
https://www.ncbi.nlm.nih.gov/pubmed/34884675
http://dx.doi.org/10.3390/ijms222312869
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author Cefarin, Nicola
Bedolla, Diana E.
Surowka, Artur
Donato, Sandro
Sepperer, Thomas
Tondi, Gianluca
Dreossi, Diego
Sodini, Nicola
Birarda, Giovanni
Vaccari, Lisa
author_facet Cefarin, Nicola
Bedolla, Diana E.
Surowka, Artur
Donato, Sandro
Sepperer, Thomas
Tondi, Gianluca
Dreossi, Diego
Sodini, Nicola
Birarda, Giovanni
Vaccari, Lisa
author_sort Cefarin, Nicola
collection PubMed
description Tannin-furanic rigid foams are bio-based copolymers of tannin plant extract and furfuryl alcohol, promising candidates to replace synthetic insulation foams, as for example polyurethanes and phenolics, in eco-sustainable buildings thanks to their functional properties, such as lightness of the material and fire resistance. Despite their relevance as environmental-friendly alternatives to petroleum derivatives, many aspects of the polymerization chemistry still remain unclear. One of the open issues is on the spatial heterogeneity of the foam, i.e., whether the foam constituents prevalently polymerize in spatially segregated blocks or distribute almost homogenously in the foam volume. To address this matter, here we propose a multiscale FTIR study encompassing 1D FTIR spectroscopy, 2D FTIR imaging and 3D FTIR micro-tomography (FTIR-μCT) on tannin-furanic rigid foams obtained by varying the synthesis parameters in a controlled way. Thanks to the implementation of the acquisition and processing pipeline of FTIR-μCT, we were able for the first time to demonstrate that the polymer formulations influence the spatial organization of the foam at the microscale and, at the same time, prove the reliability of FTIR-μCT data by comparing 2D FTIR images and the projection of the 3D chemical images on the same plane.
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spelling pubmed-86580032021-12-10 Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography Cefarin, Nicola Bedolla, Diana E. Surowka, Artur Donato, Sandro Sepperer, Thomas Tondi, Gianluca Dreossi, Diego Sodini, Nicola Birarda, Giovanni Vaccari, Lisa Int J Mol Sci Article Tannin-furanic rigid foams are bio-based copolymers of tannin plant extract and furfuryl alcohol, promising candidates to replace synthetic insulation foams, as for example polyurethanes and phenolics, in eco-sustainable buildings thanks to their functional properties, such as lightness of the material and fire resistance. Despite their relevance as environmental-friendly alternatives to petroleum derivatives, many aspects of the polymerization chemistry still remain unclear. One of the open issues is on the spatial heterogeneity of the foam, i.e., whether the foam constituents prevalently polymerize in spatially segregated blocks or distribute almost homogenously in the foam volume. To address this matter, here we propose a multiscale FTIR study encompassing 1D FTIR spectroscopy, 2D FTIR imaging and 3D FTIR micro-tomography (FTIR-μCT) on tannin-furanic rigid foams obtained by varying the synthesis parameters in a controlled way. Thanks to the implementation of the acquisition and processing pipeline of FTIR-μCT, we were able for the first time to demonstrate that the polymer formulations influence the spatial organization of the foam at the microscale and, at the same time, prove the reliability of FTIR-μCT data by comparing 2D FTIR images and the projection of the 3D chemical images on the same plane. MDPI 2021-11-28 /pmc/articles/PMC8658003/ /pubmed/34884675 http://dx.doi.org/10.3390/ijms222312869 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 Article
Cefarin, Nicola
Bedolla, Diana E.
Surowka, Artur
Donato, Sandro
Sepperer, Thomas
Tondi, Gianluca
Dreossi, Diego
Sodini, Nicola
Birarda, Giovanni
Vaccari, Lisa
Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title_full Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title_fullStr Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title_full_unstemmed Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title_short Study of the Spatio-Chemical Heterogeneity of Tannin-Furanic Foams: From 1D FTIR Spectroscopy to 3D FTIR Micro-Computed Tomography
title_sort study of the spatio-chemical heterogeneity of tannin-furanic foams: from 1d ftir spectroscopy to 3d ftir micro-computed tomography
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658003/
https://www.ncbi.nlm.nih.gov/pubmed/34884675
http://dx.doi.org/10.3390/ijms222312869
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