K. I. Kobrakov

Methylphloroglucinol as an available semiproduct for azo dye synthesis

A technologically convenient method is suggested for the high-yield synthesis of 2,4,6-trihydroxytoluene (methylphloroglucinol) from 2,4,6-trinitrotoluene. A number of structurally different azo dyes have been synthesized. The dyes are applicable to various textiles, ensuring high colorfastness to laundering and rubbing.

Characteristics of the Macromolecular Reaction of the Graft Copolymer of Polyvinyl Alcohol and Polyglycidyl Methacrylate with Hydroxyethylamine

The kinetics of the macromolecular reaction of amination of PVA—PGMA graft copolymer is quantitatively described. The initial rate of the process, order of the reaction rate in amine, and effective activation energy are determined. The effect of the nature of the polymer matrix on the kinetic parameters of conversion of graft PGMA α-oxide groups under the effect of hydroxyethylamine is established.

Chemical Modification of Synthetic Fibres with Complex Metal Salts with Organic Ligands

The possibility of deliberately altering the biocidal and capillary properties of a fabric by combined treatment with solutions of metal salts and low-molecular-weight organic substances with special properties — dyeing, biocidal, etc., is demonstrated.