Artículo
Lizarraga, L.; Verdejo, T.; Molina, F.V.; González-Vila, F.J. "Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline" (2007) Journal of Analytical and Applied Pyrolysis. 80(2):485-488
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Abstract:
Pyrolysis-gas chromatography/mass spectrometry (Py-CG/MS) has been applied to study and compare the composition of two electrochemically synthesized polyaniline (PANI) forms: fully reduced leucoemeraldine (LE) and intermediately oxidized emeraldine (EM). The different PANI forms were electrochemically synthesized using cyclic voltammetry. They were dedoped by stirring for 24 h in ammoniacal solutions. Leucoemeraldine and emeraldine pyrograms presented differences in the relative intensity of their fragment signals. Emeraldine pyrograms presented a higher relative intensity of the signals associated to oxidized fragments (i.e. quinone imine) than leucoemeraldine pyrograms. On the other hand, polymer samples synthesized under different anodic potentials showed small differences, consistent with a higher degree of crosslinking at higher anodic potentials. The results obtained indicate that Py-GC/MS may be used for identification among different oxidation states in aryl amine polymers. © 2007 Elsevier B.V. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline |
| Autor: | Lizarraga, L.; Verdejo, T.; Molina, F.V.; González-Vila, F.J. |
| Filiación: | INQUIMAE, Facultad de Ciencias Exactas, UBA Pabellón II, C. Universitaria, C1428EHA Buenos Aires, Argentina Instituto de Recursos Naturales y Agrobiologia, C.S.I.C., P.O. Box 1052, 410800 Sevilla, Spain |
| Palabras clave: | Conducting polymer; Cyclic voltammetry; Oxidation states; Polymer structure; Crosslinking; Cyclic voltammetry; Gas chromatography; Mass spectrometry; Oxidation; Pyrolysis; Synthesis (chemical); Aryl amine polymers; Oxidation states; Polymer structure; Polyaniline |
| Año: | 2007 |
| Volumen: | 80 |
| Número: | 2 |
| Página de inicio: | 485 |
| Página de fin: | 488 |
| DOI: | http://dx.doi.org/10.1016/j.jaap.2007.02.007 |
| Título revista: | Journal of Analytical and Applied Pyrolysis |
| Título revista abreviado: | J Anal Appl Pyrolysis |
| ISSN: | 01652370 |
| CODEN: | JAAPD |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01652370_v80_n2_p485_Lizarraga |
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Citas:
---------- APA ----------
Lizarraga, L., Verdejo, T., Molina, F.V. & González-Vila, F.J. (2007) . Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline. Journal of Analytical and Applied Pyrolysis, 80(2), 485-488.http://dx.doi.org/10.1016/j.jaap.2007.02.007
---------- CHICAGO ----------
Lizarraga, L., Verdejo, T., Molina, F.V., González-Vila, F.J. "Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline" . Journal of Analytical and Applied Pyrolysis 80, no. 2 (2007) : 485-488.http://dx.doi.org/10.1016/j.jaap.2007.02.007
---------- MLA ----------
Lizarraga, L., Verdejo, T., Molina, F.V., González-Vila, F.J. "Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline" . Journal of Analytical and Applied Pyrolysis, vol. 80, no. 2, 2007, pp. 485-488.http://dx.doi.org/10.1016/j.jaap.2007.02.007
---------- VANCOUVER ----------
Lizarraga, L., Verdejo, T., Molina, F.V., González-Vila, F.J. Pyrolysis-gas chromatography/mass spectrometry applied to the identification of different states of polyaniline. J Anal Appl Pyrolysis. 2007;80(2):485-488.http://dx.doi.org/10.1016/j.jaap.2007.02.007
