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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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Penttilä, Paavo A.
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Insights into the action of phylogenetically diverse microbial expansins on the structure of cellulose microfibrilscitations
- 2022Effect of Moisture on Polymer Deconstruction in HCl Gas Hydrolysis of Woodcitations
- 2021Green Fabrication Approaches of Lignin Nanoparticles from Different Technical Lignins : A Comparison Studycitations
- 2021Deswelling of microfibril bundles in drying wood studied by small-angle neutron scattering and molecular dynamicscitations
- 2021Green Fabrication Approaches of Lignin Nanoparticles from Different Technical Ligninscitations
- 2021Water-accessibility of interfibrillar spaces in spruce wood cell wallscitations
- 2020Observing microfibril bundles in wood by small-angle neutron scattering
- 2020Bundling of cellulose microfibrils in native and polyethylene glycol-containing wood cell walls revealed by small-angle neutron scatteringcitations
- 2020Bundling of cellulose microfibrils in native and polyethylene glycol-containing wood cell walls revealed by small-angle neutron scatteringcitations
- 2020Moisture-related changes in the nanostructure of woods studied with X-ray and neutron scatteringcitations
- 2019Small-angle scattering model for efficient characterization of wood nanostructure and moisture behaviourcitations
- 2013Small-angle scattering study of structural changes in the microfibril network of nanocellulose during enzymatic hydrolysiscitations
Places of action
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article
Small-angle scattering model for efficient characterization of wood nanostructure and moisture behaviour
Abstract
Small-angle scattering methods allow an efficient characterization of the hierarchical structure of wood and other cellulosic materials. However, their full utilization would require an analytical model to fit the experimental data. This contribution presents a small-angle scattering model tailored to the analysis of wood samples. The model is based on infinitely long cylinders packed in a hexagonal array with paracrystalline distortion, adapted to the particular purpose of modelling the packing of cellulose microfibrils in the secondary cell wall of wood. The new model has been validated with small-angle neutron and X-ray scattering data from real wood samples at various moisture contents. The model yields reasonable numerical values for the microfibril diameter (2.1–2.5 nm) and packing distance (4 and 3 nm in wet and dry states, respectively) and comparable results between the two methods. It is particularly applicable to wet wood samples and allows changes in the packing of cellulose microfibrils to be followed as a function of moisture content. ; Peer reviewed