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Electropolymerization and ion exchange properties of a polypyrrole film doped by para ‐toluene sulfonate
Author(s) -
Jin Chengyou,
Yang Fenglin,
Yang Weishen
Publication year - 2006
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.23775
Subject(s) - sulfonate , polypyrrole , toluene , aqueous solution , ion exchange , ion , polymer chemistry , chemistry , materials science , sodium , inorganic chemistry , dodecylbenzene , polymerization , polymer , organic chemistry
Electropolymerization and ion exchange properties of the polypyrrole film doped by para ‐toluene sulfonate (PPy/pTS) were investigated in aqueous solutions. The film with a column‐like surface morphology was galvanostatically synthesized at 3 mA/cm 2 during 1800 s. Cyclic voltammetric measurements of the PPy/pTS film in sodium para ‐toluene sulfonate (NapTS), tetraethylammonium chloride ((C 2 H 5 ) 4 NCl), and NaCl aqueous solutions showed a cation exchange property, an anion exchange property, and a combination of them, respectively. Moreover, the large ions could decrease the transport of the small ions coexisting in the same solution, and the redox processes were proved to be electrochemically irreversible and ion transport‐limiting reactions. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2518–2522, 2006