Dynamic interfacial interactions between the HAPAA and PANI hydrogels are favorable for self-healing; thus, the PANI network can enhance the mechanical and electronic properties of HAPAA hydrogel without compromising its self-healing performance.
An effective and simple strategy is proposed to prepare a multifunctional hydrogel that shows ultra-stretchable (>2900%), anti-fatigue-fracture, and self-healable properties.