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Pyrrole chemical polymerization on textiles: Kinetics and operating conditions
Author(s) -
Ferrero Franco,
Napoli Liuba,
Tonin Claudio,
Varesano Alessio
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.24149
Subject(s) - polymerization , polypyrrole , ammonium persulfate , pyrrole , materials science , polymer chemistry , fiber , adsorption , monomer , polyaniline , synthetic fiber , kinetics , chemical engineering , solution polymerization , conductive polymer , persulfate , chemistry , polymer , composite material , organic chemistry , catalysis , physics , quantum mechanics , engineering
Abstract The chemical polymerization of pyrrole was studied with the aim of defining the best operating conditions for obtaining conductive fabrics of synthetic fibers. Ammonium persulfate was chosen as the oxidant, and various dopants were tested. Among these, naphtalene‐2,6‐disulfonic acid disodium salt enabled the lowest surface resistivity to be reached. Hence, several kinetic runs were performed to explain the influence of some operating conditions as oxidant concentration and temperature. A pseudo‐first‐order kinetic equation was derived, and the reaction rates were found to be practically unaffected by the presence of the textile substrate. Pyrrole polymerization was faster than adsorption of the monomer, suggesting the hypothesis of fast polymerization outside the fibers followed by adsorption onto the fiber surface. The surface coating of polypyrrole was evidenced by microscopic observation of the fiber cross sections. ©2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 4121–4126, 2006