Method for preparing an oriented and nanostructured surface...

Coating processes – With post-treatment of coating or coating material – Solvent vapor treatment of coating

Reexamination Certificate

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C427S307000

Reexamination Certificate

active

07838074

ABSTRACT:
The invention concerns a method for preparing a substrate one surface of which consists of a polymer, said polymer surface being oriented and nanostructured, said method including the following successive steps: a) brushing the polymer surface in an amorphous state of the substrate; b) contacting with a vapor of a solvent, the oriented polymer surface obtained at the end of step a), said solvent being selected such that: |δpoly−δsol|/[(δpoly+δsol)/2]<0.3, δpolyand δsolrepresenting respectively the solubility parameters of the polymer and of the solvent, and γsol<γpoly, γsolet γpolyrepresenting respectively the free surface energies of the solvent and the polymer. The invention concerns a substrate one polymer surface of which at least is oriented and nanostructured, and the various uses of said substrate.

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