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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, Skolan för kemivetenskap (CHE), Kemi, Fysikalisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Centrum för Industriell NMR-teknik.ORCID-id: 0000-0002-6524-1441
KTH, Skolan för kemivetenskap (CHE), Centra, Wallenberg Wood Science Center. KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik, Biokompositer.
KTH, Skolan för kemivetenskap (CHE), Centra, Wallenberg Wood Science Center. KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik, Biokompositer.ORCID-id: 0000-0001-5818-2378
KTH, Skolan för kemivetenskap (CHE), Kemi, Fysikalisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Centrum för Industriell NMR-teknik.ORCID-id: 0000-0002-0231-3970
2011 (engelsk)Inngår i: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 65, nr 1, s. 103-107Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2011. Vol. 65, nr 1, s. 103-107
Emneord [en]
annual rings, bound water, constant time imaging, dendrochronology, growth rings, heavy water, nuclear magnetic resonance (NMR)
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Identifikatorer
URN: urn:nbn:se:kth:diva-31351DOI: 10.1515/HF.2010.121ISI: 000286182500014Scopus ID: 2-s2.0-78651438316OAI: oai:DiVA.org:kth-31351DiVA, id: diva2:404444
Forskningsfinansiär
Swedish Research Council
Merknad
QC 20110317Tilgjengelig fra: 2011-03-17 Laget: 2011-03-14 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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

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