Figure 5

(a) Scanning electron microscope (SEM) image of OH-functionalized crosslinked polymer microspheres. (b) Infrared (IR) spectra of the crosslinked polymer microspheres obtained before and after the postpolymerization of 2g. (c and d) Profiles of water droplets on the layer of polymer microspheres obtained before (c) and after (d) postpolymerization of 2g.