Thermoresponsive ionogels with switchable adhesion in air and aqueous environments induced by LCST phase behavior
Cong Zhao, Lie Chen, Yunfei Ru, Longhao Zhang, Mingjie Liu
Abstract
2.7 kPa) in air and aqueous environments, respectively. By varying the ratio of two structurally similar ILs in their blends, the responsive temperature of ionogels can be tuned within a wide temperature range from 32 °C to 100 °C. Furthermore, we show a demonstration of an underwater on demand capture and release by taking advantage of the switchable adhesion of ionogels. These nonvolatile ionogels with tunable responsive temperatures and high on/off adhesion strength ratio both in air and aqueous environments show broad applications in the fields related to wearable devices, soft robots and submersible sensors.
Topics & Concepts
Lower critical solution temperatureAdhesionAqueous solutionPhase (matter)Chemical engineeringMaterials scienceAqueous two-phase systemNanotechnologyChemistryPolymerComposite materialOrganic chemistryCopolymerEngineeringAdvanced Sensor and Energy Harvesting MaterialsPolymer Surface Interaction StudiesAdhesion, Friction, and Surface Interactions