Investigation of ethylene/butadiene copolymers microstructure by H-1 and C-13 NMR

Authors
Llauro, MF Monnet, C Barbotin, F Monteil, V Spitz, R Boisson, C
Citation
Mf. Llauro et al., Investigation of ethylene/butadiene copolymers microstructure by H-1 and C-13 NMR, MACROMOLEC, 34(18), 2001, pp. 6304-6311
Citations number
27
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULES
ISSN journal
00249297 → ACNP
Volume
34
Issue
18
Year of publication
2001
Pages
6304 - 6311
Database
ISI
SICI code
0024-9297(20010828)34:18<6304:IOECMB>2.0.ZU;2-6
Abstract
Ethylene and butadiene are copolymerized with neodymocene catalysts. In thi s paper, a complete H-1 and C-13 NMR analysis of ethylene/butadiene copolym ers is reported for the first time. The results of this study show that the microstructure of copolymers depends on the cyclopentadienyl ligands of th e catalyst. The presence of the trans-1,2-cyclohexane structure, formed by intramolecular cyclization, is detected and fully investigated by 2D NMR H- 1/C-13 direct and long-range correlation.