Analysis of carbon-13 nuclear magnetic resonance spectrum of polystyrene by means of model molecules

The study of 2,4‐diphenylpentane (1), 2,4,6‐triphenylheptane (2) and 2,4,6,8‐tetraphenylnonane (3) by 13C NMR allows to compare the various chemical sequences of these compounds in terms of their chemical shifts. Methyl, methylene and aromatic C1 carbons are particularly sensitive to tacticity. More...

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Veröffentlicht in:Die Makromolekulare Chemie 1977-07, Vol.178 (7), p.1987-1992
Hauptverfasser: Jasse, Bruno, Lauprêtre, Françoise, Monnerie, Lucien
Format: Artikel
Sprache:eng
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Zusammenfassung:The study of 2,4‐diphenylpentane (1), 2,4,6‐triphenylheptane (2) and 2,4,6,8‐tetraphenylnonane (3) by 13C NMR allows to compare the various chemical sequences of these compounds in terms of their chemical shifts. Methyl, methylene and aromatic C1 carbons are particularly sensitive to tacticity. Moreover, from the aromatic C1 chemical shifts it is possible to propose an assignment of the corresponding pentads of polystyrene.
ISSN:0025-116X
0025-116X
DOI:10.1002/macp.1977.021780713