Amirulloeva N. Adsorption and inhibiting action of cationic polyelectrolytes and their associates with sodium alkylsulfonate

The subject of investigation: electrode processes in the adsorption of cationic oligomers and their associates (PEC) with sodium alkilsulfonatamy. Purpose of investigation: the laws of the electrode processes in the adsorption of cationic polyelectrolyte, sodium alkyl sulphonates and their assotsiates on the base systematic experimental studies to establish. Metods of investigation: voltammetry, kulonostatic method, impedance, Kucera method, the method of Wilhelmi; photocolorimeter, optical emission spectroscopy, the method of equilibrium dialysis, conductometry; capillary viscometery. Theoretical and practical results: obtained of systematic data on the adsorption of cationic oligomers and its effect on the kinetics of charge transfer and adsorption mechanisms are installed and the inhibitory effect of polyelectrolyte and PEC. A new method for enhancing the adsorption capacity and cationic polyelectrolyte inhibitory action, which is directly in the formation of PEC in solution of oligomers with alkylsulfonate anions. Results of studies of technological properties of inhibitors of acid corrosion of steel on the basis of PEC allow you to select the most effective inhibitor, which is dramatically different technological and environmental indicators. The novelty of the provisions and the results of the first time found that the adsorption of water-soluble cationic polyelectrolytes investigated and their associates with alkyl sulfonate anions on mercury and the interface solution / air caused only by the interaction of particulates with a solvent and in the case of polycrystalline electrodes have the additional interaction of the functional groups of macromolecules their surface, it is shown that in systems containing cationic oligomers and a study of sodium alkyl sulfonates formed nonstoichiometric associates with high values of formation constants, which increase with increasing length of the hydrocarbon chains of low molecular weight component of the PEC demonstrated a significant increase in the adsorption equilibrium constants of PEC compared to the reference oligomers associated with an increase in hydrophobicity of particulate aggregation and increased their push solvent at the interface, found that the investigated cationic polyelectrolyte and PEC exhibit high inhibitory activity in the discharge of zinc and cadmium amalgam electrodes, which decreases slightly on polycrystalline electrodes due to the reduction of the electrostatic interaction between the organic adsorbate and the discharging ions. Scope of use: results of the thesis work on the laws of the electrode processes in the adsorption of cationic polyelectrolyte, sodium alkylsulphonates and their associates are essential for electrochemistry.