| 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: |δ poly −δ sol |/[(δ poly +δ sol )/2]<0.3, δ poly and δ sol representing respectively the solubility parameters of the polymer and of the solvent, and γ sol <γ poly , γ sol et γ poly representing 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. |