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SEM images of the 125μm thick porous poly(butyl acrylate-co-ethylene dimethacrylate) monolithic layers with surface exhibiting dual roughness (left panel) and with smooth surface (right panel) prepared in mold with surfaces of both top + bottom glass plate and the top glass plate only silanized, respectively. The layers were prepared from polymerization mixture #3 Photographs of water droplets on the surfaces are shown in inserts.
