The carboxymethylation of organosolv and kraft lignins

Abstract

Kraft and ethanol organosolv lignins from Picea abies and Fagus sylvatica were carboxymethylated with bromoacetic acid. Of the total hydroxyl groups in the lignins, 60–70% were carboxymethylated. The reaction led to an increase of the number-average molecular weights. The moisture adsorption of the carboxymethylated products is about one and a half as high… (More)
DOI: 10.1007/BF00353458

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@article{Lange2004TheCO, title={The carboxymethylation of organosolv and kraft lignins}, author={W. Lange and W. Schweers}, journal={Wood Science and Technology}, year={2004}, volume={14}, pages={1-7} }