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A multinuclear magnetic resonance imaging (MRI) study of wood with adsorbed water: Estimating bound water concentration and local wood density
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Industrial NMR Centre.ORCID iD: 0000-0002-6524-1441
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Biocomposites.
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Biocomposites.ORCID iD: 0000-0001-5818-2378
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Industrial NMR Centre.ORCID iD: 0000-0002-0231-3970
2011 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 65, no 1, 103-107 p.Article in journal (Refereed) Published
Abstract [en]

The interaction between moisture and the macromolecular wood tissue is of critical importance to wood properties. In this context, magnetic resonance imaging (MRI) is very promising as this method could deliver molecular information on the submillimeter scale (i.e., along concentration gradients) about both free and adsorbed water and the cell wall polymers. In the present study, it is demonstrated for the first time that wood containing adsorbed heavy water ((H2O)-H-2) can be studied by MRI based on separated images due to water (H-2 MRI) and cell wall polymers (H-1 MRI). Data confirm that in specimens equilibrated at controlled humidity there is a direct correlation between bound water content and relative density of the polymers in wood tissue; there is a strong variation across annual rings.

Place, publisher, year, edition, pages
2011. Vol. 65, no 1, 103-107 p.
Keyword [en]
annual rings, bound water, constant time imaging, dendrochronology, growth rings, heavy water, nuclear magnetic resonance (NMR)
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-31351DOI: 10.1515/HF.2010.121ISI: 000286182500014Scopus ID: 2-s2.0-78651438316OAI: oai:DiVA.org:kth-31351DiVA: diva2:404444
Funder
Swedish Research Council
Note
QC 20110317Available from: 2011-03-17 Created: 2011-03-14 Last updated: 2017-12-11Bibliographically approved

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Dvinskikh, Sergey V.Berglund, Lars A.Furó, István

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