Abstract
PMDA-ODA polyimide gives rise to three major carbon is ESCA peaks: 285.0eV peak assigned to aromatic carbons not joined to nitrogen or oxygen, 286.1eV peak assigned to aromatic carbons joined to nitrogen or oxygen, and 288.8eV peak assigned to carbonyl carbons. The observed intensity of the 286.1eV peak is too high (about 2.5 fold) to be accounted for by the assignment given above. An alternative assignment is that the aromatic carbons in the PMDA ring are all rendered sufficiently electron deficient by the attached carbonyls that their carbon 1s peaks are shifted to the higher binding energy (286.1eV). This assignment has been confirmed by model compound studies and very good agreement with observed intensities was obtained.
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© 1984 Springer Science+Business Media New York
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Buchwalter, P.L., Baise, A.I. (1984). ESCA Analysis of PMDA-ODA Polyimide. In: Mittal, K.L. (eds) Polyimides. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7637-2_36
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DOI: https://doi.org/10.1007/978-1-4615-7637-2_36
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4615-7639-6
Online ISBN: 978-1-4615-7637-2
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