Sheets comprising a fluorinated polymer and presenting a variable wettability with respect to a fluid as a function of pH and/or temperature.

Laurent Billon (1) , Pierre Marcasuzaa (2, 3) , Pierre Gérard (4) , Maud Save (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 LCPO - Laboratoire de Chimie des Polymères Organiques
3 Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
4 UB - Université de Bordeaux

Sheets with the title behavior consist of a fluoropolymer matrix and block copolymer anchored to the matrix with a portion of the block copolymer having a hydrophilicity that is dependent on pH and temp. A typical sheet was manufd. by polymn. of 4-vinylpyridine in the presence of BlocBuilder in DMF at 115°, polymn. of Me methacrylate and styrene in the presence of the resulting macroinitiator, and impregnation of the resulting block copolymer into PVDF membrane.

Mots clés: fluoropolymer sheet block copolymer impregnated acidity temp controlled wettability; vinylpyridine methyl methacrylate styrene diblock copolymer impregnated PVDF membrane

Domaines: Chimie

Laurent Billon, Pierre Marcasuzaa, Pierre Gérard, Maud Save. Sheets comprising a fluorinated polymer and presenting a variable wettability with respect to a fluid as a function of pH and/or temperature.. France, Patent n° : WO 2015170030. 2015, 38pp. ⟨hal-01687863⟩