title: Radiation-grafted fluoropolymers soaked with imidazolium-based ionic liquids for high-performance ionic polymer-metal composite actuators.
abstract: On purpose to develop a polymer actuator with high stability in air-operation as well as large bending displacement, a series of ionic polymer-metal composites (IPMC) was constructed with poly(styrene sulfonate)-grafted fluoropolymers as ionomeric matrix and immidazolium-based ionic liquids (IL) as inner solvent. The prepared IPMC actuators exhibited greatly enhanced bending displacement compared to Nafion-based actuators. The actuators were stable in air-operation, maintaining initial displacement for up to 10(4) cycles or 24 h. Investigating the material parameters and morphology of the IPMCs, high ion exchange capacity of the ionomers resulted in high ion conductivity and robust electrode of IPMC, which synergistically contributed to the high bending performance.
authors.affiliation: School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea.
authors.forename: Jang Yeol
authors.initials: JY
authors.lastname: Lee
authors.forename: Hyuck Sik
authors.initials: HS
authors.lastname: Wang
authors.forename: Bye Ri
authors.initials: BR
authors.lastname: Yoon
authors.forename: Man Jae
authors.initials: MJ
authors.lastname: Han
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Jho