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| Titel: |
CHEMICAL DOPING OF TRIPHENYLAMINE-BENZALDEHYDE POLYMERS |
| Auteur: |
Tsukamoto, Nami Ha, Jaekook Sato, Hisaya Strzelec, Krzysztof |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 53 (2004) nr. 9 pagina's 799-807 |
| Jaar: |
2004-09 |
| Inhoud: |
A series of different benzaldehydes-4-tolyldiphenylamine polymers has been oxidized by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and tetrachloro-1,4-benzoquinone (p-chloranil), and also doped by 10-camphorsulfonic acid in order to increase their conductivity. The doped polymers were characterized by 1H NMR spectroscopy, cyclic voltammetry, UV, and IR spectroscopy. It was found by 1H NMR spectroscopy that the oxidation yield increased with the increased amount of oxidation agent. It was shown that optical and electrochemical bandgaps of the polymers decreased after oxidation. Conductivity measurements revealed that the applied oxidation and doping procedure resulted in decreased electrical resistance of their initial polymers, down to the level of semiconducting materials. An increased thermal stability of the polymer after oxidation was confirmed by differential scanning calorimetry. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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