Articles with "ethanol lignin" as a keyword



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Sulfation of ethanol lignin of abies wood by sulfamic acid in N,N-dimethylformamide medium

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Published in 2020 at "Biomass Conversion and Biorefinery"

DOI: 10.1007/s13399-020-00706-0

Abstract: The sulfation of ethanol lignin of abies wood by sulfamic acid–urea mixture in N,N-dimethylformamide (DMF) medium was studied for the first time. The effect of the duration of lignin sulfation process on the yield and… read more here.

Keywords: sulfation ethanol; medium; lignin; lignin abies ... See more keywords
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New Azo Derivatives of Ethanol Lignin: Synthesis, Structure, and Photosensitive Properties

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Published in 2023 at "Materials"

DOI: 10.3390/ma16041525

Abstract: Water-soluble azo derivatives of lignin were synthesized by the azo coupling reaction using organosolv ethanol lignin and diazonium salts based on sulfanilic acid and p-nitroaniline. The structure of azo derivatives of lignin were studied by… read more here.

Keywords: ethanol lignin; photosensitive properties; structure; new azo ... See more keywords
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An Efficient Method of Birch Ethanol Lignin Sulfation with a Sulfaic Acid-Urea Mixture

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Published in 2022 at "Molecules"

DOI: 10.3390/molecules27196356

Abstract: For the first time, the process of birch ethanol lignin sulfation with a sulfamic acid-urea mixture in a 1,4-dioxane medium was optimized experimentally and numerically. The high yield of the sulfated ethanol lignin (more than… read more here.

Keywords: sulfation; ethanol lignin; birch ethanol; lignin ... See more keywords