Simple Fabrication of Honeycomb- and Pincushion-Structured Films Containing Thermoresponsive Polymers and Their Surface Wettability

Honeycomb- and pincushion-structured films with thermoresponsive functionalities were fabricated by using the self-organization process. Amphiphilic copolymers with thermoresponsive functional groups were successively synthesized and used for preparation of honeycomb- and pincushion-structured films. The honeycomb-structured film shows higher water repellency than a flat film; the superhydrophobic pincushion-structured film shows a drastic contact angle change depending on the film temperature.