초록 |
Interpenetrating polymer network system, prepared by crosslinking of two polymer networks, can have intermediate properties of the two base polymer networks. We prepare solid polymer electrolytes by a sequential crosslinking method. Epoxy-based network is cured by thermal crosslinking, and then, the first network is swelled by poly(ethylene glycol) methyl ether methacrylate-based network solution. The Swelled electrolyte is crosslinked by ultraviolet light. We use the electrochemical impedance spectroscopy, rheometer, scanning electron microscope to investigate ionic conductivity, modulus, stress-strain response, surface image, and interpenetrating state of the solid polymer electrolyte. Our fabricating method can provide useful insight into the design of solid polymer electrolytes having high-strength and ionic conductivity. |