Highly stretchable, supersensitive, and self-adhesive ionohydrogels using waterborne polyurethane micelles as cross-linkers for wireless strain sensors

Novel waterborne polyurethane micelles with reactive groups on the surface has been prepared as a crosslinker and then reacted with polyacrylamide (PAM) to obtain a polyacrylamide–polyurethane/ionic liquid ionohydrogel for wireless strain sensors.