Brief description of the covalent grafting of a film of a polyarylene on a conductive surface or semi conducting - of

摘要

The present invention relates to a method of the covalent grafting of a film of a polyarylene on a part p1 of a conductive area or - conductive, which comprises the part p1 and p2, which method comprises the immersion, during a predetermined time t, the conductive area or semi conducting - in a solution containing the salt of aryldiazonium, or precursors of this salt in an organic solvent or hydro - organic, and then the removal of the conductive area or - conductor of this solution, and is characterized in that, during the immersion of the conductive area or - conductor of electricity in the solution: - the part p2 of the said surface is placed in physical contact with an element made of a conductive material which has a standard redox potential of at least less than 0,15 volts to that presented by this surface; and - the solution containing the salt of aryldiazonium or the precursors of this salt is maintained at at least 20°C. applications: treatment of surfaces of the conductive or semiconductor - conductive in order to give them specific properties (resistance to corrosion, abrasion and / or to wear, hydrophilic and hydrophobic, biocompatibility, electrical insulation, a semi - conductivity, etc.) or for the coating of a film of a polyarylene adapted to serve as an adhesion primer.