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Topochemistry of heat-treated and N-methylol melamine modified wood of Koto (Pterygota macrocarpa K. Schum.) and Limba (Terminalia superba Engl. et Diels)
Georg August University of Göttingen, Germany.
Georg August University of Göttingen, Germany ; Technological Educational Institute of Larissa, Greece.ORCID iD: 0000-0002-6909-2025
Federal Research Institute of Rural Areas, Germany.
Georg August University of Göttingen, Germany.
2013 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 67, no 2, 137-146 p.Article in journal (Refereed) Published
Abstract [en]

To broaden the knowledge about the chemical changes at the cell wall level of differently modified tropical hardwoods, heat-treated and N-methylol melamine (NMM)-treated samples of koto (Pterygota macrocarpa) and limba (Terminalia superba) were prepared. UV microspectrophotometry (UMSP) was applied at 278 and 240 nm as specific wavelengths to analyze chemical alterations of the samples caused by heat and NMM treatment, respectively. The absorbance of koto exceeded that of limba before and after treatment, potentially due to the higher extractive content of the former. Regardless of the wood species, the absorbance of the samples increased with increasing intensity of the NMM treatment. Additionally, the absorbance of lignin within the spectrum of 230–350 nm was altered due to the NMM treatment. The functionality of applying specific wavelengths for the analysis of different modification methods of wood was proven. However, the comparison with literature did not show differences in the absorbance, which could be assigned to the characteristics of tropical hardwoods.

Place, publisher, year, edition, pages
2013. Vol. 67, no 2, 137-146 p.
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-41792DOI: 10.1515/hf-2012-0017OAI: oai:DiVA.org:lnu-41792DiVA: diva2:800799
Available from: 2015-04-07 Created: 2015-04-07 Last updated: 2017-01-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • modern-language-association-8th-edition
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  • de-DE
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