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In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood

Waterlogged archaeological wood is often in need of consolidation prior to drying to prevent shrinkage and cracking of the object. There is a need for new greener materials (than for example polyethylene glycol) and methods for consolidation to be developed. The use of wood-based components could pr...

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Autores principales: McHale, Emily, Steindal, Calin C., Kutzke, Hartmut, Benneche, Tore, Harding, Stephen E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5406834/
https://www.ncbi.nlm.nih.gov/pubmed/28447666
http://dx.doi.org/10.1038/srep46481
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author McHale, Emily
Steindal, Calin C.
Kutzke, Hartmut
Benneche, Tore
Harding, Stephen E.
author_facet McHale, Emily
Steindal, Calin C.
Kutzke, Hartmut
Benneche, Tore
Harding, Stephen E.
author_sort McHale, Emily
collection PubMed
description Waterlogged archaeological wood is often in need of consolidation prior to drying to prevent shrinkage and cracking of the object. There is a need for new greener materials (than for example polyethylene glycol) and methods for consolidation to be developed. The use of wood-based components could provide good interaction between the consolidant and the remaining wood structure and would also support a shift away from fossil fuel-based materials to those with more sustainable sources. Based on this, lignin-like structures have been investigated for their ability to consolidate waterlogged archaeological wood. The in situ formation of a lignin-like material has been carried out using isoeugenol polymerised by horse radish peroxidase in aqueous solution. The formation of the oligomeric/polymeric materials within the wood following this reaction has been determined by Attenuated Total Reflectance Fourier Transform Infra Red (ATR-FTIR) spectroscopy. The oligomers remaining in solution have been characterised by ATR-FTIR and nuclear magnetic resonance (NMR) spectroscopy as well as analytical ultracentrifugation, showing that they have a weight average M(w) of 0.4–0.9 kDa and a lignin-like structure rich in the β-5′ moiety. Therefore, this approach is proposed as a basis to further develop a green consolidation method for waterlogged archaeological wood.
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spelling pubmed-54068342017-05-02 In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood McHale, Emily Steindal, Calin C. Kutzke, Hartmut Benneche, Tore Harding, Stephen E. Sci Rep Article Waterlogged archaeological wood is often in need of consolidation prior to drying to prevent shrinkage and cracking of the object. There is a need for new greener materials (than for example polyethylene glycol) and methods for consolidation to be developed. The use of wood-based components could provide good interaction between the consolidant and the remaining wood structure and would also support a shift away from fossil fuel-based materials to those with more sustainable sources. Based on this, lignin-like structures have been investigated for their ability to consolidate waterlogged archaeological wood. The in situ formation of a lignin-like material has been carried out using isoeugenol polymerised by horse radish peroxidase in aqueous solution. The formation of the oligomeric/polymeric materials within the wood following this reaction has been determined by Attenuated Total Reflectance Fourier Transform Infra Red (ATR-FTIR) spectroscopy. The oligomers remaining in solution have been characterised by ATR-FTIR and nuclear magnetic resonance (NMR) spectroscopy as well as analytical ultracentrifugation, showing that they have a weight average M(w) of 0.4–0.9 kDa and a lignin-like structure rich in the β-5′ moiety. Therefore, this approach is proposed as a basis to further develop a green consolidation method for waterlogged archaeological wood. Nature Publishing Group 2017-04-27 /pmc/articles/PMC5406834/ /pubmed/28447666 http://dx.doi.org/10.1038/srep46481 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
McHale, Emily
Steindal, Calin C.
Kutzke, Hartmut
Benneche, Tore
Harding, Stephen E.
In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title_full In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title_fullStr In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title_full_unstemmed In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title_short In situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
title_sort in situ polymerisation of isoeugenol as a green consolidation method for waterlogged archaeological wood
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5406834/
https://www.ncbi.nlm.nih.gov/pubmed/28447666
http://dx.doi.org/10.1038/srep46481
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