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11.04.2024 | Original

Aqueous modification of waterlogged archaeological wood by phenylboronic acid to reduce hygroscopicity and improve the dimensional stability

verfasst von: Yihang Zhou, Yue Zhang, Liyan Kan, Yue Wang, Kai Wang, Dongbo Hu

Erschienen in: Wood Science and Technology

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Abstract

During the dehydration of waterlogged archaeological wood (WAW), shrinkage inevitably occurs due to capillary force and hydrogen bond recombination as WAW loses free and adsorbed water. Existing drying techniques, including solvent displacement, freeze-drying, and supercritical fluid drying, only take effect by reducing or eliminating the surface tension of liquid. Nonetheless, the contribution of hydrogen bond recombination in shrinkage has long been neglected and a countermeasure concerning this problem is needed. In this study, we propose a simple aqueous phenylboronic acid (PBA) treatment that can help improve dimensional stability and reduce hygroscopicity of WAW. Analysis by Fourier transform infrared spectroscopy, density functional theory calculation and dynamic vapour sorption reveal that PBA can incorporate with hydroxyl groups (–OH) on cellulose through coordination and hydrogen bonds, occupy the water-cellulose binding sites, and possibly inhibit the formation of hydrogen bonds between adjacent cellulose chains.

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Literatur
Zurück zum Zitat Liu X, Tu X, Ma W et al (2022) Consolidation and dehydration of waterlogged archaeological wood from site huaguangjiao No.1. Forests 13(11):1919 Liu X, Tu X, Ma W et al (2022) Consolidation and dehydration of waterlogged archaeological wood from site huaguangjiao No.1. Forests 13(11):1919
Zurück zum Zitat Thommes M, Kaneko K, Neimark AV, Olivier JP, Rodriguez-Reinoso F, Rouquerol J, Sing KS (2015) Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC technical report). Pure Appl Chem 87(9):1051–1069. https://doi.org/10.1515/pac-2014-1117CrossRef Thommes M, Kaneko K, Neimark AV, Olivier JP, Rodriguez-Reinoso F, Rouquerol J, Sing KS (2015) Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC technical report). Pure Appl Chem 87(9):1051–1069. https://​doi.​org/​10.​1515/​pac-2014-1117CrossRef
Metadaten
Titel
Aqueous modification of waterlogged archaeological wood by phenylboronic acid to reduce hygroscopicity and improve the dimensional stability
verfasst von
Yihang Zhou
Yue Zhang
Liyan Kan
Yue Wang
Kai Wang
Dongbo Hu
Publikationsdatum
11.04.2024
Verlag
Springer Berlin Heidelberg
Erschienen in
Wood Science and Technology
Print ISSN: 0043-7719
Elektronische ISSN: 1432-5225
DOI
https://doi.org/10.1007/s00226-024-01551-4