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Preparation and characterization of electroconductive polypyrrole–thermoplastic composites
Author(s) -
CastilloOrtega M. M.,
Encinas J.C.,
Rodríguez D. E.,
Olayo R.
Publication year - 2001
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.1578
Subject(s) - materials science , composite material , polypyrrole , casting , composite number , polymer chemistry , ether , vinyl alcohol , thermoplastic , vinyl chloride , polymer , chemistry , polymerization , copolymer , organic chemistry
Polypyrrole–thermoplastic composite films were obtained by casting. Homogeneous films were prepared with dispersant poly(vinyl methyl ether) or poly(vinyl ethyl ether) by two methods. Electric conductivity, morphology, mechanical properties, and sensitivity to H 2 O 2 in water were studied. Composites of polypyrrole with poly(vinyl chloride) carboxylated and poly(vinyl methyl ether) presented improved mechanical and electrical properties compared with other composites studied. These films were sensitive to H 2 O 2 in water, showing a significant change in electric resistance. This change is discussed in relation to the H 2 O 2 concentration and the exposure time. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1498–1506, 2001