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Mixed conducting polymers on ion‐conducting sensor glasses – charge transfer in the system polymer/glass
Author(s) -
Jahn Heimo,
Kaden Heiner,
Berthold Monika
Publication year - 2004
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/masy.200450643
Subject(s) - polymer , materials science , conductive polymer , polypyrrole , electrode , ion , analytical chemistry (journal) , calibration , composite material , chemistry , polymerization , chromatography , organic chemistry , statistics , mathematics
Mixed ion/electron conducting polymer layers based on polypyrrole have been used as internal reference electrodes in all‐solid‐state pH glass electrodes. The effect of the nature and composition of the polymer used and of the deposition technique applied on the performance of the resulting sensor has been studied. For this purpose, crucial sensor properties, e.g. parameters of the calibration function, response behaviour and complex impedance, have been determined experimentally at room temperature. The results show that several properties studied remained nearly uninfluenced by changes of the polymer composition. The zero potential point of the calibration line was found to be the most sensitive parameter. Principally, almost all mixed conducting polymers used seems to result in a stable charge transfer in the system polymer/glass.