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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rautkari, Lauri
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Improving mechanical performance and functionality of birch veneer with mechano-enzymatic microfibrillated cellulose coatingcitations
- 2023Evaluating the quality of surface carbonized woods modified with a contact charring or a gas flame charring techniquecitations
- 2022Decay Resistance of Surface Carbonized Woodcitations
- 2022Effect of Moisture on Polymer Deconstruction in HCl Gas Hydrolysis of Woodcitations
- 2022Moisture Sorption of Wood Surfaces Modified by One-Sided Carbonization as an Alternative to Traditional Façade Coatingscitations
- 2021Bioinspired living coating system in service: evaluation of the wood protected with biofinish during one-year natural weatheringcitations
- 2021Deswelling of microfibril bundles in drying wood studied by small-angle neutron scattering and molecular dynamicscitations
- 2021Water-accessibility of interfibrillar spaces in spruce wood cell wallscitations
- 2021Thermal modification of wood—a review: chemical changes and hygroscopicitycitations
- 2020Observing microfibril bundles in wood by small-angle neutron scattering
- 2020The effect of compression and incision on wood veneer and plywood physical and mechanical propertiescitations
- 2020Bundling of cellulose microfibrils in native and polyethylene glycol-containing wood cell walls revealed by small-angle neutron scatteringcitations
- 2020Effect of weathering on surface functional groups of charred norway spruce cladding panelscitations
- 2020Moisture-related changes in the nanostructure of woods studied with X-ray and neutron scatteringcitations
- 2020Resistance of thermally modified and pressurized hot water extracted Scots pine sapwood against decay by the brown-rot fungus Rhodonia placentacitations
- 2019Small-angle scattering model for efficient characterization of wood nanostructure and moisture behaviourcitations
- 2018The effect of de- and re-polymerization during heat-treatment on the mechanical behavior of Scots pine sapwood under quasi-static loadcitations
- 2018Sorption-related characteristics of surface charred spruce woodcitations
- 2018Influence of water and humidity on wood modification with lactic acidcitations
- 2018Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensingcitations
- 2018Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensingcitations
- 2017THE INFLUENCE OF THERMAL MODIFICATION ON VENEER BOND STRENGTH
- 2017Surface activation of wood by corona treatment and NaOH soaking for improved bond performance in plywoodcitations
- 2017Influence of temperature of thermal treatment on surface densification of sprucecitations
- 2017Pre-treatment with sodium silicate, sodium hydroxide, ionic liquids or methacrylate resin to reduce the set-recovery and increase the hardness of surface-densified scots pinecitations
- 2016Cladding boards in wooden facades
- 2015Influence of Welding Time on Tensile-Shear Strength of Linear Friction Welded Birch (Betula pendula L.) Woodcitations
- 2015High-Strength Composite Fibers from Cellulose-Lignin Blends Regenerated from Ionic Liquid Solutioncitations
- 2014Internal vapour pressure of plywood during hot pressing process (STSM funded by COST Action FP1006)
Places of action
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article
Effect of Moisture on Polymer Deconstruction in HCl Gas Hydrolysis of Wood
Abstract
Funding Information: The authors thank Dr. Chic-Wei Lin for additional experimental work, Hanna Seppäläinen for the chemical composition analysis, and Dr. Leena Pitkänen for her help with the GPC analysis. The authors also acknowledge the OtaNano─Nanomicroscopy Center (Aalto-NMC) for the provision of facilities and technical support offered for the WAXS and SEM measurements. This work made use of Aalto University Bioeconomy Facilities. P.P. acknowledges financial support by the Academy of Finland (grant no. 315768). T.P. acknowledges the funding from Business Finland (R2B project: Gas-driven technology for cost-efficient production of cellulose nanocrystals 42472/31/2020). Publisher Copyright: © ; The HCl gas system previously used to produce cellulose nanocrystals was applied on Scots pine wood, aiming at a controlled deconstruction of its macrostructure while understanding the effect on its microstructure. The HCl gas treatments resulted in a well-preserved cellular structure of the wood. Differences in wood initial moisture content (iMC) prior to HCl gas treatment played a key role in hydrolysis rather than the studied range of exposure time to the acidic gas. Higher iMCs were correlated with a higher degradation of hemicellulose, while crystalline cellulose microfibrils were not largely affected by the treatments. Remarkably, the hydrogen-deuterium exchange technique showed an increase in accessible OH group concentration at higher iMCs, despite the additional loss in hemicelluloses. Unrelated to changes in the accessible OH group concentration, the HCl gas treatment reduced the concentration of absorbed D2O molecules. ; Peer reviewed