Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F21%3A89698" target="_blank" >RIV/60460709:41320/21:89698 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2073-4360/13/7/993" target="_blank" >https://www.mdpi.com/2073-4360/13/7/993</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/polym13070993" target="_blank" >10.3390/polym13070993</a>

Result language
angličtina
Original language name
Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process
Original language description
Thermal modification is an environmentally friendly process in which technological properties of wood are modified using thermal energy without adding chemicals, the result of which is a value-added product. Wood samples of three tropical wood species (meranti, padauk, and merbau) were thermally treated according to the ThermoWood process at various temperatures (160, 180, 210 degrees C) and changes in isolated lignin were evaluated by nitrobenzene oxidation (NBO), Fourier-transform infrared spectroscopy (FTIR), and size exclusion chromatography (SEC). New data on the lignins of the investigated wood species were obtained, e.g., syringyl to guaiacyl ratio values (S/G) were 1,21, 1,70, and 3,09, and molecular weights were approx. 8600, 4300, and 8300 g center dot mol(-1) for meranti, padauk, and merbau, respectively. Higher temperatures cause a decrease of methoxyls and an increase in C=O groups. Simultaneous degradation and condensation reactions in lignin occur during thermal treatment, the latter p
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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