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Effect of molecular structure on performance of electroactive ionic acrylic copolymer–platinum composites
Author(s) -
Jeong Han Mo,
Woo Sung Min,
Lee Sukmin,
Cha GookChan,
Mun Mu Seong
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22701
Subject(s) - copolymer , materials science , ionic bonding , acrylic acid , methacrylate , composite material , acrylic resin , polymer chemistry , composite number , polymer , chemistry , ion , organic chemistry , coating
The character and performance of a new ionic polymer–metal composite (IPMC) prepared with a melt‐processable fluorinated acrylic copolymer were examined. The fluorinated acrylic copolymer was synthesized by the copolymerization of fluoroalkyl methacrylate (DuPont Zonyl) and acrylic acid, and it was compression molded to attain membranes of various thicknesses. The current and displacement responses by electric stimulus were measured to study the effects of the ionic concentration, thickness, and countercation on the actuation of the IPMC. The ionic center of the acrylic copolymer was essential for the actuation of the IPMC; however, too much ionic center induced excessive water uptake, which caused adverse effects on the performance of the IPMC. When the applied voltage was 5 V, the largest current and displacement responses were observed with the IPMC prepared by a fluorinated acrylic copolymer containing 11.8 wt % acrylic acid. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1732–1739, 2005