Estimation of the Effect of Diffusion and Transformation of Lignosulfonates on the Mechanism of Delignification in Sulfite Cooking of Spruce Wood

The contribution of diffusion and transformation of macromolecules to the mechanism of delignification of cell wall in sulfite cooking of spruce wood was quantitatively estimated from variation of the parameters of the Kolmogorov-Erofeev-Avrami equation and hydrodynamic radii of lignosulfonate macromolecules found in the cooking liquor.     

Effect of residual lignin on the supramolecular structure of sulfate hardwood cellulose: A Fourier IR study

The effect of the content and structural features of residual lignin on the ordering of supramolecular structures in sulfate birch and aspen cellulose was studied by Fourier IR spectroscopy.     

Estimation of the content and assessment of structural transformations of residual lignin and resin in deciduous kraft pulp by Fourier IR spectroscopy

Variation ofthe amount, composition, and structure of the residual lignin and resin in pulp samples from kraft cooking of birch and aspen woods and their blend with addition of distilled tall oil was studied by Fourier IR spectroscopy.