Naslov
Chemical and Electrochemical Characterization of Chemically Synthesized Conducting Polypyrorole

Autori
Sak-Bosnar, Milan ; Budimir, Milana ; Kovač, Spomenka ; Kukulj, Dobrila ; Duić, Ljerka

Izvornik
Journal of Polymer Science Part A - Polymer Chemistry (0887-624X) 30 (1992); 1609-1614

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Conducting polypyrrole; Chemical synthesis; Cyclic voltammetry
(Polypyrrole; electrocheConducting polypyrrole; Chemical synthesis; Cyclic voltammetry)

Sažetak
The conducting polypyrrole chemically synthetized in water, using the variable concentrations of feCl3 and CuCl2 as oxidizing agents, was chemically and electrochemically characterized and compared with electrochemically generated poypyrrole. According to the results of elemental analysis and counter ion determinations, it can be concluded that a mixture of dimer and trimer was obtained using CuCl2, i.e., a dimer composition using FeCl3 as an oxidant. Cyclic voltammetric studies of polypyrrole obtained by using FeCl3 as an oxidant showed no evidence of polypyrrole decomposition after repetitive cycling. The voltammograms showed also that after the oxidation reaction a high capacitive current remained, confirming the assumption that the capacitive current is intrinsically associated with polypyrrole, irrespective of the way of its preparation. Cyclic voltammogram of the polypyrrole synthesized by oxidation with CuCl2 showed differnt shape, probably influenced by the presence of copper ions incorporated in polymers.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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