Surface-coating method
The invention relates to the deposition or attachment of materials to surfaces. It relates to a process for coating a surface with a first material and a second material, comprising the following steps: placing the first material on the said surface, inserting into the first material placed on the said surface precursor molecules of the second material, converting the said precursor molecules of the second material inserted into the first material into the said second material such that this second material becomes formed on the said surface to be coated and within the said first material placed on the said surface. The object of the process of the invention is to allow the deposition of materials of any type onto surfaces of any type.
1. A process for coating an electrically conductive or semiconductive surface, comprising:
applying a solution of at least one monomer and an electrochemically reducible metal ion to a surface portion of the substrate to be coated;
applying voltammetric sweeps on the coated electrically conductive or semi-conductive surface;
wherein
the current applied during the voltammetric sweeps simultaneously:
a) electrografts a portion of the at least one monomer to the electrically conductive surface and a polymer chain is formed beginning with the electrografted monomers, and
b) reduces the metal ion to metal;
to obtain a coating comprising an electrografted polymer and a uniform distribution of metal.
2. The process according to claim 1 , wherein the electrically conductive or semiconductive surface is mineral or organic.
3. The process according to claim 1 , wherein the at least one monomer is at least one activated vinyl monomer of structure (I):
wherein
R 1 , R 2 , R 3 and R 4 are organic groups selected, independently of each other, from the group consisting of the following organic functions: hydrogen, hydroxyl, amine, thiol, carboxylic acid, ester, amide, imide, imido-ester, acid halide, acid anhydride, nitrile, succinimide, phthalimide, isocyanate, epoxide, siloxane, benzoquinone, benzophenone, carbonyldiimidazole, para-toluenesulphonyl, para-nitrophenyl chloroformate, ethylenic, vinyl and aromatic.
4. The process according to claim 3 , wherein at least one from among R 1 , R 2 , R 3 and R 4 comprises a cation complexing functional group.
5. The process according to claim 1 , wherein the at least one monomer is selected from the group of vinyl monomers consisting of acrylonitrile, methacrylonitrile, methyl methacrylate, ethyl methacrylate, butyl methacrylate, propyl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, glycidyl methacrylate, aminoethyl, aminopropyl, aminobutyl, aminopentyl and aminohexyl methacrylamides, cyanoacrylates, polyethylene glycol dimethacrylate, acrylic acid, methacrylic acid, styrene, para-chlorostyrene, N-vinylpyrrolidone, 4-vinylpyridine, vinyl halides, acryloyl chloride and methacryloyl chloride, and derivatives thereof.
6. The process according to claim 1 , wherein the metal ion is an ion of a metal selected from the group of metals consisting of copper, zinc, gold, tin, titanium, vanadium, chromium, iron, cobalt, lithium, sodium, aluminum, magnesium, potassium, rubidium, caesium, strontium, yttrium, niobium, molybdenum, ruthenium, rhodium, palladium, silver, cadmium, indium, lutetium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, mercury, thallium, lead, bismuth, a lanthanide metal and an actinide metal.
7. The process according to claim 1 , wherein the coated surface provides an interface reinforcement between a conductive or semiconductive substrate and a metal.
8. A process for the manufacture of an interconnection component in microelectronics comprising the process according to claim 1 .
9. A process for anticorrosion treatment of a metallic surface comprising the process according to claim 1 .
10. A process for surface treatment of an object for implanting into a living organism comprising the process according to claim 1 .
11. A process for the manufacture of a biochip comprising the process according to claim 1 .
12. A process for the manufacture of a surface with catalytic properties comprising the process according to claim 1 .