Abstract
In this paper, we present an experimental study of the isomerization from cis to trans (CH)X induced by a thermal treatment of the film. Infrared, Raman, EPR and NMR spectroscopies have been used, in addition to dc conductivity measurements, in order to characterize the kinetics of the isomerization process. All the spectroscopic methods show that the isomerization is thermally activated with an activation energy of ∼ 18 kcal/mole. It is also shown that degradation processes are also involved and an activation energy close to 30 kcal/mole is derived from EPR data. Optimal conditions to perform a thermal isomerization of cis(CH)X, with respect to the extent of conjugation, are suggested.
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Bernier, P., Lefrant, S., Rolland, M. et al. Thermal isomerization and degradation of polyacetylene. J. Electron. Mater. 12, 289–322 (1983). https://doi.org/10.1007/BF02651134
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DOI: https://doi.org/10.1007/BF02651134