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

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 vapour of a solvent, the oriented polymer surface obtained at the end of step a), said solvent being selected such that: |?poly??sol|/[(?poly+?sol)/2]<0.3, ?poly and ?sol representing respectively the solubility parameters of the polymer and of the solvent, and ?sol<?poly, ?sol et ?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.

Abstract: This polymeric composition comprises a blend of polymers comprising: (a) a semi-crystalline fluorinated polymer, (b) an acrylic polymer, and is characterized in that it additionally comprises: (c) from 0.01 to 20% by weight, with respect to the total weight of the semi-crystalline fluorinated polymer and of the acrylic polymer, of a nucleating agent in the form of particles having a melting point greater than that of the semi-crystalline fluorinated polymer. These compositions result in formulations in the form of dry powders or of powders in suspension in water or in a latent solvent for the semi-crystalline fluorinated polymer. Applied to a substrate, these formulations give, by baking, glossy and stable coatings comprising spherulites with a size of less than 5 ?m.

Abstract: This polymeric composition comprises a blend of polymers comprising: (a) a semi-crystalline fluorinated polymer, (b) an acrylic polymer, and is characterized in that it additionally comprises: (c) from 0.01 to 20% by weight, with respect to the total weight of the semi-crystalline fluorinated polymer and of the acrylic polymer, of a nucleating agent in the form of particles having a melting point greater than that of the semi-crystalline fluorinated polymer. These compositions result in formulations in the form of dry powders or of powders in suspension in water or in a latent solvent for the semi-crystalline fluorinated polymer. Applied to a substrate, these formulations give, by baking, glossy and stable coatings comprising spherulites with a size of less than 5 ?m.