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Functionalized conducting polymers for chemical sensors – an in situ ESR/UV‐Vis‐NIR voltammetric study
Author(s) -
Tarábek Ján,
Wolter Mareike,
Rapta Peter,
Plieth Waldfried,
Maumy Michel,
Dunsch Lothar
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200102)164:1<219::aid-masy219>3.0.co;2-u
Subject(s) - copolymer , polypyrrole , thiophene , materials science , indium tin oxide , polymer , polymer chemistry , redox , electrochromism , conductive polymer , cyclic voltammetry , transition metal , electrode , photochemistry , electrochemistry , polymerization , chemistry , thin film , organic chemistry , nanotechnology , catalysis , metallurgy , composite material
The redox and optical properties of various well defined polymer and copolymer films containing pyrrole or thiophene units were studied. The in situ ESR/UV‐Vis‐NIR spectroelectrochemistry was applied to investigate polymers and copolymers deposited both electrochemically or by a special chemical procedure using adhesion promoter onto the optically transparent indium‐tin‐oxide (ITO) electrodes. The spectroelectrochemical responses of chemically and electrochemically prepared polythiophenes on ITO were compared and the electronic structures of both polymers found to be similar. In situ ESR/UV‐Vis‐NIR voltammetric studies on electrochemically prepared copolymers containing pyrrole units and various N,N′‐ethylene‐bis(salicylidenimine) (salen) transition metal complexes indicate the presence of both polysalen and polypyrrole redox active centers in the copolymer.