Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.reactfunctpolym.2006.04.002
DC FieldValue
dc.titleRedox reactions of polyaniline films doped with d,l-camphor sulfonic acid
dc.contributor.authorKocherginsky, N.M.
dc.contributor.authorWang, Z.
dc.date.accessioned2014-10-09T07:00:10Z
dc.date.available2014-10-09T07:00:10Z
dc.date.issued2006-11
dc.identifier.citationKocherginsky, N.M., Wang, Z. (2006-11). Redox reactions of polyaniline films doped with d,l-camphor sulfonic acid. Reactive and Functional Polymers 66 (11) : 1384-1393. ScholarBank@NUS Repository. https://doi.org/10.1016/j.reactfunctpolym.2006.04.002
dc.identifier.issn13815148
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/90000
dc.description.abstractSimplified comparison of standard redox potentials demonstrates that redox reactions of d,l-camphor sulfonic acid (CSA) doped polyaniline (PANI) films with aqueous solutions of FeCl3 and K3Fe(CN)6 should not take place. Nevertheless the reactions are possible and described here. The initial rate of 0.01M Fe3+ reduction is higher than that obtained with HCl doped PANI film at similar conditions. Films doped with CSA stay active at neutral pH with K3Fe(CN)6 as the oxidizing agent, which is different from depressed electroactivity of PANI-HCl films in these conditions. The redox processes are not limited by simple surface reaction and have two kinetically different steps (the initial, fast and the second, slower). A new mechanism is suggested according to which two redox half reactions (oxidation of the polymer fragments and reduction of ions in the solution) are separated in space and are coupled by counter transport of electrons and Cl- anions into the opposite direction. A new phenomenon is demonstrated where the gradient of Cl- activity in the film changes the equilibrium state of the redox process in aqueous solution. © 2006 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.reactfunctpolym.2006.04.002
dc.sourceScopus
dc.subjectCamphor sulfonic acid
dc.subjectPolyaniline
dc.subjectRedox reaction
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.reactfunctpolym.2006.04.002
dc.description.sourcetitleReactive and Functional Polymers
dc.description.volume66
dc.description.issue11
dc.description.page1384-1393
dc.description.codenRFPOF
dc.identifier.isiut000242231400020
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