TY - JOUR
T1 - Submicrometric fibrillar structures of codoped polyaniline obtained by co-oxidation using the NaClO/ammonium peroxydisulfate system
T2 - Synthesis and characterization
AU - Osorio-Fuente, Jorge Enrique
AU - Gómez-Yáñez, Carlos
AU - Hernández-Pérez, María de los Ángeles
AU - Corea-Téllez, Mónica de la Luz
PY - 2013/10
Y1 - 2013/10
N2 - A mixture of ammonium peroxydisulfate and sodium hypochlorite (NaClO) (co-oxidating system) were used to obtain polyaniline (PANi) doped with HCl and camphorsulfonic acid (CSA) (co-doping). The effect of HCl/CSA ratio added during polymerization on structure, morphology and electrical conductivity of the conducting polymer was investigated. When NaClO is used, the polymerization rate is substantially increased and the morphology changes from micrometric granular to nanometric fibrillar. CSA was used as complementary dopant but also to improve the solubility of PANi in common solvents. However, results suggest that quinone-like heterocycles containing carbonyl radicals as well as phenazine-type aromatic rings might be impeding an efficient doping in detriment of the conductivity.
AB - A mixture of ammonium peroxydisulfate and sodium hypochlorite (NaClO) (co-oxidating system) were used to obtain polyaniline (PANi) doped with HCl and camphorsulfonic acid (CSA) (co-doping). The effect of HCl/CSA ratio added during polymerization on structure, morphology and electrical conductivity of the conducting polymer was investigated. When NaClO is used, the polymerization rate is substantially increased and the morphology changes from micrometric granular to nanometric fibrillar. CSA was used as complementary dopant but also to improve the solubility of PANi in common solvents. However, results suggest that quinone-like heterocycles containing carbonyl radicals as well as phenazine-type aromatic rings might be impeding an efficient doping in detriment of the conductivity.
KW - Co-oxidant
KW - Codoping
KW - Nanofibers
KW - Polyaniline
UR - http://www.scopus.com/inward/record.url?scp=84892746766&partnerID=8YFLogxK
M3 - Artículo
SN - 1870-249X
VL - 57
SP - 306
EP - 313
JO - Journal of the Mexican Chemical Society
JF - Journal of the Mexican Chemical Society
IS - 4
ER -