| Title: | Moisture-dependent transition from strong to weak hydrogen bonding in wood polysaccharides |
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| Authors: | ID Majstorović, Filip (Author)
ID Sandak, Jakub Michal (Author) |
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| Files: |  RAZ_Majstorovic_Filip_2026.pdf (4,60 MB)
MD5: E3F47FB0D29EC36A84A52B3CBFCDC8CA
 https://www.sciencedirect.com/science/article/pii/S0144861726005138?via%3Dihub
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | IAM - Andrej Marušič Institute
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| Abstract: | Near-infrared (NIR) spectroscopy combined with multivariate analysis was employed to investigate moisture- dependent hydrogen bonding of water in softwood cell walls. Spectral variations at equilibrium moisture con- tents were analyzed using principal component analysis and perturbation-correlation moving-window two- dimensional correlation spectroscopy to distinguish water populations with varying hydrogen-bond strengths. A distinct transition in hydrogen-bonding behavior was identified at approximately 10% wood moisture content. Below this threshold, water was found to predominantly engage in strong hydrogen bonds within wood cell walls. Above 10% moisture content, the relative contribution of strong hydrogen bonds to the overall wood- water hydrogen bond network decreased, whereas weakly hydrogen-bonded population became increasingly dominant. Experiments on modified wood and isolated polymers indicated that this transition originates mainly from wood polysaccharides, while lignin plays a minor role. These findings provide strong evidence for distinct water populations in wood cell walls, distinguished by their intermolecular hydrogen-bonding energies and predominant at specific wood moisture contents |
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| Keywords: | infrared spectroscopy, wood-water interactions, hydrogen bonding, wood cell wall, cellulose |
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| Publication version: | Version of Record |
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| Publication date: | 03.05.2026 |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-10 |
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| Numbering: | Vol. 385, [article no.] 125396 |
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| PID: | 20.500.12556/RUP-23118  |
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| UDC: | 674:54 |
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| ISSN on article: | 1879-1344 |
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| DOI: | 10.1016/j.carbpol.2026.125396 |
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| COBISS.SI-ID: | 280686339 |
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| Publication date in RUP: | 05.06.2026 |
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| Views: | 31 |
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| Downloads: | 2 |
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