A Dynamically Cross-Linked, Stretchable, Self-Healing, and Recyclable Polyurethane-Based Ionogel for Flexible Strain Sensors

, along with remarkable self-healing ability and full recyclability. Based on these attributes, the ionogel is further fabricated into a flexible strain sensor, which demonstrates reliable sensitivity and excellent cyclic stability. This work provides a material platform and design concept for developing highly reliable, practical, and multifunctional flexible electronic devices.