The antiadhesive properties and biocompatibility of porous and nonporous films based on branched polyvinyl alcohol were evaluated. A nonporous film of branched polyvinyl alcohol has been shown to preserve the intestinal epithelium and cause only slight inflammation and edema. On the contrary, implantation of a porous film induced fibrin formation and severe inflammation and ensured only focal preservation of the intestinal epithelium.

The interrelation of the synthesis conditions of polyvinyl alcohol chain branching products under the action of epichlorohydrin in an alkaline medium was established with the kinetic laws of swelling of films based on them in water. It was shown that conditions conducing to an increase in the branching density of the polyvinyl alcohol chain lead to an increase in the equilibrium degree of swelling in water. The possibility of growing cells of the M-22 line on the surface of branched polyvinyl alcohol films was demonstrated, which indicates their biocompatibility.

An amphiphilic oligomer was prepared by telomerization of acrylic acid in the presence of n-hexyl mercaptan. The structure, molecular weight, critical micelle concentration, and ζ-potential of the oligomer, and also its particle-size distribution in aqueous solution were determined. The product allows solubilization of prothiondamide antituberculosis drug. A procedure was suggested for preparing a filling formulation containing prothionamide for filling postoperative cavities in connective tissue.

The kinetics of the reaction of polyvinyl alcohol with epichlorohydrin in an aqueous sodium hydroxide solution has been studied. The process rate has been shown to be diffusion-limited. Size exclusion chromatography data have revealed that polyvinyl alcohol chain branching proceeds slower than the nucleophilic substitution of the hydroxyl groups of polyvinyl alcohol with introduction of glycidyl groups.

The possibility of modification of polyvinyl alcohol with epichlorohydrin was examined with the aim of preparing hemocompatible materials exhibiting high mechanical density at limited swellability. The conditions of modification and preparation of branched polyvinyl alcohol and of hemocompatible hydrogel systems with improved operation properties were determined.

Certain rheological properties of aqueous dispersions of polyaniline in the presence of poly-(N-vinylpyrrolidone) as a stabiliser were investigated. The influence of the molecular weight of poly-(N-vinylpyrrolidone) and also the concentration of aniline and ammonium peroxydisulphate on the size and shape of the polyaniline particles was shown.

It is suggested that a lyophobic stabilised colloidal system is formed under conditions of oxidative polymerisation of aniline. The influence of the molecular weight of additions of poly(N-vinylpyrrolidone) on the rate of oxidative polymerisation of aniline is shown.

IR spectroscopy was used to investigate the structure of polyaniline, poly(2-methoxyaniline), polyanthranilic acid, and poly(N-ethylaniline). Absorption bands were assigned to the corresponding groups. The existence of a number of characteristic absorption bands of aromatic polyamines was shown.

The rate of oxidative polymerization of aniline was shown to increase with the increase of poly-(N-vynilpyrrolidone) molecular weight up to its definite value. The new kinetic model of oxidative polymerization of aniline up to deep conversions taking into consideration the system heterogeneity was proposed.

The new high-perfomance membrane was synthesized. The chemical structure of selective layer was studied. The membrane filtration range was estimated.

The kinetics of aniline oxidative polymerization has been studied by the potentiometric technique. This is the first time that a kinetic model of oxidative polymerization has been constructed as a heterogeneous autocatalytical process. The change in the degree of rate of aniline oxidative polymerization has been determined and explained by the monomer concentration and poly-(N-vinylpyrrolidone) being present in the reaction system.