Synthesis of consecutive diisocyanate and sulfonated polystyrene layers on silica glass surface for the production of fused silica capillary columns

The depositing of oligomeric diisocyanate layer on the surface of silica glass allowed to carry out the subsequent grafting of a polymer coating based on polystyrol and polystyrol-sulfonic acid mixture. The synthesized coatings are continuous, uniform and possess a good adhesion to the substrate. The obtained results allowed to determinate the optimal conditions for formation on the silica glass of the stationary phase with physicochemical and geometric parameters required for manufacturing of fragmented capillary columns, concentration and analysis the manufacture of segmented capillary columns for electro-migratory methods of dividing, concentrating and analysis of the various multicomponent systems