Hydrodynamic Properties and Structure of Lignin

Abstract

Experimental data on hydrodynamic properties of natural and biosynthetic lignins in dilute solutions are reviewed. The results of viscometric, translational diffusion, and sedimentation studies evidence that the macromolecules of lignin are characterized by a complex topological structure. Benefits and limitations of the theoretical approaches used to describe the topology of lignin macrochains are discussed. The relationship between hydrodynamic characteristic and fractal properties of lignin is considered.

Key Words:

• Lignin
• Hydrodynamic properties
• Structure