Thermally-Induced Triple-Shape Hydrogels: Soft Materials Enabling Complex Movements

摘要: Shape-memory hydrogels enable directed movements of a specimen in response to temperature, whereby crystallizable switching segments incorporated as side chains resulted constant degrees swelling during the shape-memory cycle. Here we report about exhibiting thermally induced triple-shape effect that allows complex soft materials with two almost independent shape changes. Potential applications for those are two-step self-unfolding devices or temperature-sensitive hydrogel actuators, example, smart valves flow rate control aqueous media. Series different hydrophobic were prepared. The not affected shapes temperatures, which avoided this way interferences on shifts. During programming procedure, distinct can be implemented reflected by fixity ratios generally >50%...