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Radiation‐Grafted Fluoropolymers Soaked with Imidazolium‐Based Ionic Liquids for High‐Performance Ionic Polymer–Metal Composite Actuators
Author(s) -
Lee Jang Yeol,
Wang Hyuck Sik,
Yoon Bye Ri,
Han Man Jae,
Jho Jae Young
Publication year - 2010
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201000261
Subject(s) - nafion , materials science , ionic liquid , composite material , bending , actuator , composite number , polymer , ionic bonding , ionic conductivity , electroactive polymers , chemical engineering , electrode , polymer chemistry , ion , chemistry , electrochemistry , organic chemistry , electrolyte , computer science , artificial intelligence , engineering , catalysis
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.