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Kinetic study of pyrrole polymerization with iron (III) chloride in water
Author(s) -
Planche M. F.,
Thiéblemont J. C.,
Mazars N.,
Bidan G.
Publication year - 1994
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.1994.070521304
Subject(s) - pyrrole , polymerization , polypyrrole , chemistry , polymer chemistry , chloride , solution polymerization , kinetics , organic chemistry , polymer , physics , quantum mechanics
The chemical synthesis of polypyrrole in water, with FeCl 3 as an oxidant of pyrrole, was investigated. During these experiments in ambient air, a large evaporation of pyrrole was observed. Moreover, a kinetic study of pyrrole disappearance by high‐performance liquid chromatography (HPLC), with various FeCl 3 concentrations, proved that the polymerization is first order with respect to the pyrrole and second order with respect to the FeCl 3 . These kinetics can be explained by the formation of an intermediary FeCl 3 –pyrrole complex as the first step of the polymerization. The second step, which is rate‐determining, is the pyrrole oxidation by FeCl 3 , © 1994 John Wiley & Sons, Inc.