Kwon, Taehoon Cho, Hyeongrae Lee, Jang-Woo Henkensmeier, Dirk Kang, Youngjong Koo, Chong Min 2024-01-20T01:01:16Z 2024-01-20T01:01:16Z 2021-09-05 2017-08 1944-8244 https://pubs.kist.re.kr/handle/201004/122449 Ionic polymer composite membranes based on sulfonated poly(arylene ether sulfone) (SPAES) and copper(II) phthalocyanine tetrasulfonic acid (CuPCSA) are assembled into bending ionic polymer actuators. CuPCSA is an organic filler with very high sulfonation degree (IEC = 4.5 mmol H+/g) that can be homogeneously dispersed on the molecular scale into the SPAES membrane, probably due to its good dispersibility in SPAES-containing solutions. SPAES/CuPCSA actuators exhibit larger ion conductivity (102 mS cm(-1)), tensile modulus (208 MPa), strength (101 MPa), and strain (1.21%), exceptionally faster response to electrical stimuli, and larger mechanical power density (3028 W m(-3)) than ever reported for ion-conducting polymer actuators. This outstanding actuation performance of SPAES/CuPCSA composite membrane actuators makes them attractive for next-generation transducers with high power density, which are currently developed, e.g., for underwater propulsion and endoscopic surgery. English American Chemical Society Sulfonated Copper Phthalocyanine/Sulfonated Polysulfone Composite Membrane for Ionic Polymer Actuators with High Power Density and Fast Response Time Article 10.1021/acsami.7b07572 1 ACS Applied Materials & Interfaces, v.9, no.34, pp.29063 - 29070 ACS Applied Materials & Interfaces 9 34 29063 29070 N scie scopus 000409395500101 2-s2.0-85028697207 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article RADIATION-GRAFTED FLUOROPOLYMERS METAL COMPOSITES NANOCOMPOSITE MEMBRANES PHYSICAL-PROPERTIES PERFORMANCE TRANSDUCERS COPOLYMERS IPMCS ionic polymer actuator organic composite polymer electrolyte sulfonated copper phthalocyanine response rate mechanical power density