Figure 2. Film presence on polymer surfaces. (A–E) Topography is observed by ESEM images (scale bars, 50 µm [x400]; inlays, 10 µm [x1600]). Below each main picture is a representation of the corresponding image of a CSLM vertical section of the polyelectrolyte film. G, comparative measurements of static contact angles. The smaller the contact angles, the greater the wettability.