Microstructure of Ethene/Norbornene Copolymers

The microstructure of ethene/norbornene copolymers produced by metallocene/methylaluminoxane catalysts is investigated by 13C NMR spectroscopy. The microstructure of alternating copolymers is assigned on the pentad level by comparison of the pentad distribution in 13C NMR spectra with the calculated...

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Veröffentlicht in:	Macromolecules 1999-11, Vol.32 (22), p.7335-7343
Hauptverfasser:	Arndt-Rosenau, Michael, Beulich, Inken
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Organic polymers Physicochemistry of polymers Properties and characterization Structure, morphology and analysis
Online-Zugang:	Volltext
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Zusammenfassung:	The microstructure of ethene/norbornene copolymers produced by metallocene/methylaluminoxane catalysts is investigated by 13C NMR spectroscopy. The microstructure of alternating copolymers is assigned on the pentad level by comparison of the pentad distribution in 13C NMR spectra with the calculated distribution according to the alternating mechanism. Norbornene block structures produced with different catalysts are compared, and norbornene diblock structures are assigned. Triad distributions for the alternating copolymers and diad distributions for copolymers containing diblocks were obtained.
ISSN:	0024-9297 1520-5835
DOI:	10.1021/ma981813z