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Conductive polyaniline/poly(methyl methacrylate) films obtained by electropolymerization
Author(s) -
Karakişla Meral,
Saçak Mehmet,
Akbulut Ural
Publication year - 1996
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/(sici)1097-4628(19960228)59:9<1347::aid-app1>3.0.co;2-b
Subject(s) - polyaniline , materials science , aniline , methyl methacrylate , conductive polymer , polymer chemistry , electrode , electrochemistry , scanning electron microscope , foil method , platinum , polymer , conductivity , polymerization , methacrylate , chemical engineering , poly(methyl methacrylate) , composite material , chemistry , organic chemistry , catalysis , engineering
Electrochemical polymerization of aniline, on a Pt foil electrode coated with poly(methyl methacrylate) (PMMA), produces a homogeneous, free‐standing, flexible, and conductive polymer film. The conductivity of the films depends on the aniline content and reaches 0.1–0.2 S/cm for films having aniline content of 15% or more. The optimum thickness of precoated PMMA to obtain durable conducting films was found to be in the range of 10–15 μm. Cyclic voltammetric investigation revealed that aniline exhibits a similar electrochemical behavior on a PMMA coated platinum electrode similar to a bare Pt surface. The film gives a fast and reproducible response against ammonia gas within a concentration range of 1.0–0.01%. Scanning electron micrographs indicate that the films have a rough structure consisting of globular regions. © 1996 John Wiley & Sons, Inc.