Abstract
Movement of polyethylene glycol (PEG) 1000 from wood cell lumens into adjacent cell walls was studied for different cell wall moisture contents (MCs) and PEG solvents; relative amounts of PEG that penetrated into the cell walls were estimated by Raman microscopy. It was shown that samples treated with PEG from chloroform solution adsorb less PEG than samples treated with PEG-water solution even in the case of samples with open cell wall structure near fibre saturation point MC. Reconditioning of PEG-chloroform treated samples at high relative humidities enhanced PEG bulking of cell walls, but not to the maximum amounts observed with PEG-water treatments. Raman microscopy was a useful tool for estimating relative PEG amounts in the cell walls.
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Jeremic, D., Cooper, P. & Heyd, D. PEG bulking of wood cell walls as affected by moisture content and nature of solvent. Wood Sci Technol 41, 597–606 (2007). https://doi.org/10.1007/s00226-006-0120-7
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DOI: https://doi.org/10.1007/s00226-006-0120-7