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Biomimetic Synthesis of a Water‐Soluble Conducting Polymer of 3,4‐Ethylene‐dioxythiophene
Author(s) -
Nabid M. R.,
Shamsianpour M.,
Sedghi R.,
Moghaddam A. B.,
Asadi S.,
Osati S.,
Safari N.
Publication year - 2013
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201200427
Subject(s) - porphyrin , chemistry , tetra , catalysis , polymer chemistry , polymerization , monomer , copolymer , peroxydisulfate , polymer , inorganic chemistry , organic chemistry , medicinal chemistry
A novel biomimetic route for the synthesis of a water‐soluble poly(3,4‐ethylenedioxithiophene) (PEDT) in the presence of poly(styrene sulfonate) (PSS) and using iron(III)‐tetra( p ‐sulfonatophenyl)porphyrin (Fe III TSPP), cobalt(III)‐tetra( p ‐sulfonatophenyl)porphyrin (Co III TSPP), manganese(III)‐tetra( p ‐sulfonatophenyl)porphyrin (Mn III TSPP), and copper(II)‐tetra( p ‐sulfonatophenyl)porphyrin (Cu II TSPP) as effective catalysts is presented. The reactions were performed with different monomer, catalyst, template, and initiator concentrations. The absorbance of the polaron bands at various pH values indicated pH 2 as the best condition for polymerization. Precipitation or salting out was highly dependent on the mentioned factors. The formation of PEDT was confirmed by UV‐Vis and FT‐IR spectroscopy. Cyclic voltammetry proved the convenient electroactivity of the synthesized polymer. The presence of PSS that serves as a charge‐compensating dopant provides processability and water solubility and, in addition, a distinct advantage over similar reactions employing native enzymes due to higher stability and lower cost of the catalysts.