Readily Producing the High Self-Healing, Conductive and Photothermal Conversion Silly Putty-like Hydrogel Based on Dynamic Coordinate Bonds and Hydrogen Bonds

Silly Putty-like material with tunable mechanical property, unique rheological behavior and recycle molding ability have emerged as a promising star for widely spreading in bionic robots, energy storage and intelligent monitoring devices. For overcoming the common heterogeneous aggregate or phase separating problems of traditional Silly Putty-like material, here, we have proposed a facile method to produce a high self-healing, conductivity and photothermal conversion hydrogel based on the dynamic metal-ligand interactions and hydrogen bonds just by simply mixing the phytate polyvinyl alcohol, pyrrole and Fe3+. The introducing of coordinate bonds has endowed the hybrid hydrogel special rheological behaviors, such as the solid-liquid like and shear-thinning properties, which would enable the injectable manufacture and remolding processing for the Silly Putty-like hydrogel. Moreover, due to wide-range light absorption of the black conductive polymer, the hydrogel also held the good photothermal conversion capacity to undertake the work of reliable photothermal imaging, portable photothermal therapy or sensitive temperature sensing. Combined with above virtues, this hydrogel may play a potential role in electronic manufacturing, medical testing and therapy.