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Darstellung und Eigenschaften von aus Vanillin und Syringaaldehyd erhältlichen Polyestern
From vanillic and syringic acid, which are obtainable from the oxidation products of harwood lignins, polyesters were prepared by two procedures. By...
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The carboxymethylation of organosolv and kraft lignins
Kraft and ethanol organosolv lignins from Picea abies and Fagus sylvatica were carboxymethylated with bromoacetic acid. Of the total hydroxyl groups...
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Alkaline nitrobenzene oxidation of plant lignins and soil humic colloids
Plant lignins and soil humic colloids were isolated using H 2 SO 4 , NaOH and 1,4-dioxane and their elemental composition, methoxyl contents and cation...
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Lignins and lignification
It has been well established that the typical woody plant is vascular, i.e., it possesses a specialized conducting system consisting of phloem and...