Schaeferling, Michael and Bäuerle, Peter (2004) Porphyrin-functionalized oligo- and polythiophenes. JOURNAL OF MATERIALS CHEMISTRY, 14 (7). pp. 1132-1141. ISSN 0959-9428, 1364-5501
Full text not available from this repository.Abstract
The synthesis and properties of a series of bi- and terthiophenes 3 - 8 substituted with meso-tetraphenylporphyrin (TPP) groups via an isolating oxaalkyl chain is described. Electrooxidative polymerization leads to the corresponding metal complexed porphyrin-functionalized polythiophenes P4 - P8. The electrochemical and spectroscopic properties of the polymer films reveal the superimposition of the electronic properties of the individual pi-systems. Spectroelectrochemical experiments and conductivity measurements point to a mixed charge transport mechanism. Polaronic and bipolaronic delocalization on the conjugated chains combined with electron hopping processes via the porphyrin redox centers result in high stability of the polymers against overoxidation. Importantly, hybrid materials have been obtained which at the same time exhibit properties of a conducting polymer and a redox polymer that can be used for the detection of polychlorinated phenols in amperometric sensors.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NUCLEAR MAGNETIC-RESONANCE; POLYPYRROLE FILM ELECTRODE; CONDUCTING POLYMERS; OXYGEN REDUCTION; NITRIC-OXIDE; SUBSTITUTED POLYTHIOPHENES; ELECTROCHEMICAL SYNTHESIS; MOLECULAR RECOGNITION; OXIDATION REACTIONS; CONJUGATED POLYMER; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Jul 2021 10:29 |
| Last Modified: | 23 Jul 2021 10:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38189 |
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