C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/44 (2006.01)
Patent
CA 2643491
The invention relates to a method for grafting an organic film onto an electically conductive or semiconductive surface by electro-reduction of a solution, wherein the solution comprises one diazonium salt and one monomer bearing at least one chain polymerizable functional group. During the electrolyzing process, at least one protocole consisting of an electrical polarization of the surface by applying a variable potential over at least a range of values which are more cathodic that the reduction or peak potential of all diazonium salts in said solution is applied. The invention also relates to an electrically conducting or semiconducting surface obtained by implementing this method. The invention further relates to electrolytic compositions.
L'invention concerne un procédé servant à greffer une pellicule organique sur une surface électriquement conductrice ou semi-conductrice par électro-réduction d'une solution comprenant un sel de diazonium et un monomère portant au moins un groupe fonctionnel polymérisable en chaîne. Pendant le processus d'électrolyse, au moins un protocole consistant en une polymérisation électrique de la surface en appliquant un potentiel variable sur au moins une plage de valeurs qui sont plus cathodiques que le potentiel de réduction ou de pic de tous les sels de diazonium dans ladite solution est appliqué. L'invention concerne également une surface électriquement conductrice ou semi-conductrice obtenue en mettant en AEuvre ce procédé. L'invention concerne en outre des compositions électrolytiques.
Alchimedics
Alchimer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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