Preparation of acetoacetylated wood meal and its properties. Part 2. Copper ion fixation by acetoacetylation
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Tomoko Nasuno
Abstract
Fixation of copper ions to acetoacetylated wood meal (AAWM) was conducted in Cu(OAc)2-MeOH solution. The maximum amount of copper fixed to AAWM was 147.9 mg g−1 under optimum conditions. From FT-IR analyses of AAWM containing copper ions (AAWM-Cu), it was concluded that a chelate was formed between copper and the acetoacetyl group of AAWM. In a leaching test, half of the copper in AAWM-Cu was retained, even at pH 4.0.
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- The influence of lignin chemistry and ultrastructure on the pulping efficiency of clonal aspen (Populus tremuloides Michx.)
- Elucidating carboxylic acid profiles for extended oxygen delignification of high-kappa softwood kraft pulps
- A selectivity study of reaction of the carbonate radical anion with methyl β-d-cellobioside and methyl β-d-glucoside in oxygenated aqueous solutions
- Evidence for the formation of lignin-hexenuronic acid-xylan complexes during modified kraft pulping processes
- The effect of molecular composition of xylan extracted from birch on its assembly onto bleached softwood kraft pulp
- Critical comparison of methods for surface coverage by extractives and lignin in pulps by X-ray photoelectron spectroscopy (XPS)
- Characterisation of lignin-carbohydrate complexes (LCCs) of spruce wood (Picea abies L.) isolated with two methods
- Characterization of lignin-carbohydrate complexes from spruce sulfite pulp
- Lignin antioxidants for preventing oxidation damage of DNA and for stabilizing polymeric composites
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- Transverse anisotropy of compressive failure in European oak – a digital speckle photography study
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