Fig. 7
From: Self-organized structures at polymer gel surfaces: Mechanisms, controlled design, and perspectives
A Phase-separated structures of a fluorinated surface-grafted gel in water, observed by high-speed AFM. Light-colored regions correspond to hydrophobic domains, whereas dark-colored regions correspond to hydrophilic domains. B Schematic representation of the nanoscale phase-separated structures constructed at the surface. C Depth profiles of ester bonds in a fluorinated surface-grafted gel (FG gel) and a base gel (NG′ gel) along the z-axis, as measured by confocal Raman spectroscopy. Reproduced from Ref. [28] with permission from the Royal Society of Chemistry
