Abstract

The hydrodynamic behavior of lignin in a dimethylsulfoxide-water mixture have been studied at the temperature range of 20–60°C and at a water content from 0 to 30%. The rise of temperature was shown to deteriorate the quality of the solvent; i.e., the system under investigation belongs to systems with a lower critical solution temperature. The dimension of lignin particles in the mixed solvent decreases with an increasing proportion of water in the system.

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