Studies on the effects of the alkyl group on the surface segregation of poly(n-alkyl methacrylate) end-capped 2-perfluorooctylethyl methacrylate films

► Study on the surface segregation of poly(n-alkyl methacrylate) end-capped with 2-perfluorooctylethyl methacrylate. ► The extent of fluorine segregation increased with increasing of the length of side n-alkyl chain. ► The surface enrichment by fluorine was enhanced greatly by the crystallinity of the side chains. ► The film formed superhydrophobic surfaces with superior long-lasting barrier properties. ► The film formed superhydrophobic surfaces with superior long-lasting barrier properties.