Electropolymerization of Monosodium Salts of Triazine Thiols in Magnetic Field

Abstract

The effect of magnetic field on the polymer plating of the 6-substituted groups triazine natrium salts such as 6-(dibutylamino)-1,3,5-triazine-4,6-dithiol monosodium salt, 6-(dihexylamino)-1,3,5-triazine-4,6-dithiol monosodium salt stepwise to 6-(dioctadecylamino)-1,3,5-triazine-4,6-dithiol monosodium salt on stainless surfaces were studied. The electropolymerizations were carried out in a magnetic field of superconducting magnet at varying magnetic flux density 0-5 T. The working (stainless) electrodes were placed parallel or perpendicular to the direction of the external magnetic field. The electropolymerization was conducted without agitation. The supporting electrolyte Na/sub 2/CO/sub 3/ in concentration of 0.1 M was used. The increase of polymerization yield on surface of stainless electrodes was examined, comparing a chronopotentiometric polymerization in the magnetic field with nonmagnetic polymerization. The evaluation of magnetic field orientation versus working electrode showed that magnetohydrodynamic effect (MHD) at parallel configuration of electrodes to the magnetic field occurred. MHD affected the convection in solution of monomers and consequently the yield of reaction. Effect of current density, polymerization time and monomer concentration on the weight of polymerized film under various magnetic flux density were examined. Results showed that the effect of magnetic field on the electropolymerization depends on its density.