Preliminary NEXAFS study of polyacrylonitrile samples differing by their isotacticity percentages
Autor: | Gérard Tourillon, Mireille Defranceschi, Isabelle Didier, Gérard Lécayon, Pascal Viel, Joseph Delhalle |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | The Journal of Physical Chemistry. 97:4777-4779 |
ISSN: | 1541-5740 0022-3654 |
Popis: | A significant dependence of polyacrylonitrile films NEXAFS spectral characteristics measured on samples differing by their configurational properties is reported. The dominant effect results from a modification of the splitting of the two C≡N π * levels with the isotacticity percentage of the chains. This observation opens the prospect of using near edge X-ray absorption fine structure technique to get information on the configurational properties of polymer chains in situations where otherwise more adapted technique cannot be used |
Databáze: | OpenAIRE |
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