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Pyrolysis mass spectrometry analysis of BF4 - doped polythiophene
Date
2004-06-01
Author
Gozet, Tuba
Hacaloğlu, Jale
Önal, Ahmet Muhtar
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Pyrolysis of electrochemically prepared BF4- doped polythiophene (PTh) by direct insertion probe and Currie point pyrolysis gas chromatography mass spectrometry techniques indicated that thermal decomposition of PTh occurs in two steps. In accordance with literature results, the first step is assigned to the loss of the dopant, and the second step to the degradation of the polymer backbone producing segments of various conjugation lengths. At elevated temperatures, detection of products such as H2S and C2H2 indicating cleavage of the thiophene (Th) ring was associated with a network structure. For the dedoped samples, a significant increase in the relative intensities of the peaks characteristic to the counter ion of the dopant, N(C4H9)(4)(+) pointed out the inward diffusion of (C4H9)(4)N+ during the dedoping process.
Subject Keywords
Polythiophene
,
Pyrolysis
,
Thermal degradation
,
Conducting polymers
URI
https://hdl.handle.net/11511/32166
Journal
Journal of Macromolecular Science - Pure and Applied Chemistry
DOI
https://doi.org/10.1081/ma-120034201
Collections
Graduate School of Natural and Applied Sciences, Article