Electropolymerization kinetics of a binary mixture of pyrrole and o-aminobenzoic acid and characterization of the obtained polymer films

Poly (pyrrol-co-o-aminobenzoic acid) has been synthesized electrochemically from an aqueous acid medium. The initial rate of electrocopolymerization reaction on platinum electrode is small and the rate law is: Rate = K₂ [D]¹.⁰²[HCl] ¹.⁴⁴[M]².⁰⁰. The apparent activation energy (Ea) is found to be 90....

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Bibliographic Details
Published in:Journal of applied polymer science 2008-08, Vol.109 (3), p.1643-1653
Main Authors: Sayyah, S.M, El-Rabiey, M.M, Abd El-Rehim, S.S, Azooz, R.E
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
kinetics (polym.)
morphology
Physicochemistry of polymers
Polymerization
Polymers and radiations
structure
TGA
X-ray
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Summary:Poly (pyrrol-co-o-aminobenzoic acid) has been synthesized electrochemically from an aqueous acid medium. The initial rate of electrocopolymerization reaction on platinum electrode is small and the rate law is: Rate = K₂ [D]¹.⁰²[HCl] ¹.⁴⁴[M]².⁰⁰. The apparent activation energy (Ea) is found to be 90.11 kJ mol⁻¹. The polymer films obtained have been characterized by cyclic voltammetry, X-ray diffraction, elemental analysis, thermogravimetric analysis, scanning electron microscopy, ¹H NMR, and IR-spectroscopy. The mechanism of the electrochemical polymerization reaction has been discussed. The monomer reactivity ratios (r₁ and r₂) were calculated.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.28188