A Dynamic Light Scattering Study of the Temperature Dependence of the Size-Distribution Pattern and Aggregation Stability of Sulfate Lignin and Wood Resin in Aqueous Alkali Solution

A dynamic light scattering study in the temperature range 293-333 K was made for solutions of sulfate lignin and resinous wood components, which are limitedly soluble in water, as well as for their mixture in an alkaline medium (pH 12.7) of sulfate cooking lye. This study proved the heterogeneous nature of these systems.