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The effect of process parameters on the morphology of polypyrrole coatings formed on carbon fibers
Author(s) -
Wood Greg A.,
Iroh Jude O.
Publication year - 1996
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10637
Subject(s) - polypyrrole , electrolyte , materials science , morphology (biology) , chemical engineering , counterion , carbon fibers , supporting electrolyte , monomer , composite material , polymerization , electrode , ion , polymer , composite number , chemistry , organic chemistry , biology , engineering , genetics
Polypyrrole coatings have been electropolymerized onto carbon fibers. Several process parameters, including the type of electrolyte, the monomer concentration, the electrolyte concentration, the applied voltage, and the electropolymerization time were systematically varied, and their effect on the morphology and composition of the coatings assessed. The SEM micrographs of the coated samples revealed several distinguishable morphologies. The presence of the counterion, derived from the electrolyte, in the coatings was confirmed by EDAX analysis, elemental analysis, and infrared spectroscopy. The doping and formation of the polypyrrole coatings occurred concuriently. The morphology of the coatings was greatly influenced by the type of electrolyte, electrolyte concentration, and the applied voltage.