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30 March 2010 Fabrication and characterization of ionic polymer gel actuators
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Abstract
Poly-AMPS (PAMPS) gel was fabricated and its electroactive behavior was studied. A weakly cross-linked anionic PAMPS gel was produced by radical polymerization using 2-acrylamido-2-methylpropane sulfonic acid (AMPS) monomers, where N,N'-methlenebisacrylamide (MBAA) and α -ketoglutaric acid were used as a cross-linking agent and a radical initiator, respectively. The polymerization was carried out at 55°C for at least 24 hours. Density and the degree of swelling of gel samples were investigated as physical properties. Also, swelling experiments were conducted in a surfactant solution using 1-dodecylpyridinium chloride hydrate. The chemo-mechanical properties of PAMPS gel were studied in a dilute surfactant solution under the electric field. The effect of material parameters on the bending deformation was investigated. As design parameters, sample thickness, current density, ion concentration of the surfactant solution, and cross-linking degree of gel were chosen, and the effect of these parameters on the actuation was studied.
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Choonghee Jo, Eunji In, and Hani E. Naguib "Fabrication and characterization of ionic polymer gel actuators", Proc. SPIE 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010, 764419 (30 March 2010); https://doi.org/10.1117/12.851787
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