AI Article Synopsis
- Researchers developed a new type of ionic polymer-metal composite (IPMC) actuator using poly(styrene sulfonate)-grafted fluoropolymers and imidazolium-based ionic liquids to enhance stability and bending displacement.
- The new actuators showed significantly better bending performance compared to traditional Nafion-based actuators and remained stable for up to 10,000 cycles or 24 hours in air operation.
- Key factors for the IPMC's success included high ion exchange capacity, which led to greater ion conductivity and a strong electrode structure, ultimately resulting in improved bending capabilities.
Article 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.
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| http://dx.doi.org/10.1002/marc.201000261 | DOI Listing |
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