| abstract |
A thin fluoropolymer film is covalently bonded to a microporous ptfe film to make a bilayer for separation, filtration or reverse osmosis, by exposing the microporous film to perfluorocyclohexane under plasma. The perfluorocyclohexane molecules undergo scission and the fragments combine on the substrate to make a fluoropolymer film wherein the pores of the substrate have not been completely closed by the coating. |