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Interactions between Different Organosilicons and Archaeological Waterlogged Wood Evaluated by Infrared Spectroscopy

Popescu, Carmen-Mihaela; Broda, Magdalena


Carmen-Mihaela Popescu

Magdalena Broda


The goal of the study was to characterise chemical interactions between waterlogged archaeological wood and organosilicon compounds applied for its conservation to shed lights on the mechanism of wood dimensional stabilisation by the chemicals. Two alkoxysilanes (methyltrimethoxysilane and (3-mercaptopropyl) trimethoxysilane) and a siloxane (1,3-bis(diethylamino)-3-propoxypropanol)-1,1,3,3-tetramethyldisiloxane) were selected for the research since they already have been proven to effectively stabilise waterlogged wood upon drying. Fourier transform infrared spectroscopy was used for structural characterisation of the degraded wood and evaluation of reactivity of the applied chemicals with polymers in the wooden cell wall. The results obtained clearly show much stronger interactions in the case of alkoxysilanes than the siloxane, suggesting a different mechanism of wood stabilisation by these compounds. The results of this study together with other data obtained in our previous research on stabilisation of waterlogged archaeological wood with organosilicon compounds allow the conclusion that the mechanism of waterlogged wood stabilisation by the used alkoxysilanes is based on bulking the cell wall by silane molecules and wood chemical modification, while in the case of the applied siloxane, it builds upon filling the cell lumina.


Popescu, C., & Broda, M. (2021). Interactions between Different Organosilicons and Archaeological Waterlogged Wood Evaluated by Infrared Spectroscopy. Forests, 12(3), Article 268.

Journal Article Type Article
Acceptance Date Feb 22, 2021
Online Publication Date Feb 26, 2021
Publication Date 2021
Deposit Date Apr 15, 2021
Publicly Available Date Apr 15, 2021
Journal Forests
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 12
Issue 3
Article Number 268
Keywords archaeological wood; degraded wood; silane; FT-IR; alkoxysilanes; wood-silane interactions; wood stabilisation; wood conservation; silane treatment
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Interactions Between Different Organosilicons And Archaeological Waterlogged Wood Evaluated By Infrared Spectroscopy (5.2 Mb)

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Copyright Statement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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