Cited by 57Organometallic Complex Synthesis and CatalysisAdvanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and properties

13C NMR analysis of α‐olefins copolymers with 1,3‐butadiene obtained with zirconocenes/methylalumoxane catalysts

Galimberti, Maurizio, Albizzati, Enrico, Abis, Luigi, Bacchilega, Giancarlo·1991·Die Makromolekulare Chemie

Abstract

Ethylene copolymers with propene and/or 1,3‐butadiene were obtained using bis(η 5‐cyclopentadienyl)zirconium dichloride (1) or ethylenebis[1‐3a, 7a‐η‐(4,5,6,7‐tetrahydro)‐1‐indenyl]zirconium dichloride (2) and methylalumoxane as catalytic systems. A detailed 13 C NMR analysis of the copolymers was performed. The resonances in the olefinic region of the terpolymers were assigned to ethylene/butadiene/ethylene and propene/butadiene/ethylene sequences while the butadiene/propene sequence was ruled out. Analogously, no polymers were obtained from the polymerization of propene in the presence of 1,3‐butadiene. It is thus shown that the conjugated diene is an inhibitor for the polymerization of α‐olefins. The presence of trans‐1,2‐cyclopentane rings was detected both in the ethylene/butadiene copolymers and in the ethylene/propene/butadiene terpolymers. A different behaviour of the two catalysts was observed.

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Crossref · 10.1002/macp.1991.021921106

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Authors
Galimberti, M., Albizzati, E., Abis, L., & Bacchilega, G.
Corresponding author
  • Galimberti, Maurizio
  • Abis, Luigi
Venue
Die Makromolekulare Chemie
Publisher
Wiley
Published
1991-11
Volume
192
Issue
11
Pages
2591-2601
ISSN
0025-116X (ISSN-L)
OpenAlex
W1515270837
Cited by
57
References
16
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2021: 1 · 2020: 1 · 2018: 3 · 2017: 4 · 2015: 2 · 2014: 1 · 2013: 1
FWCI
0.71
Type
journal article
Language
en
Open access
closed
Locations
  • Die Makromolekulare Chemie (publishedVersion)
  • Virtual Community of Pathological Anatomy (University of Castilla La Mancha) (submittedVersion)
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Organometallic Complex Synthesis and Catalysis
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
Keywords
ethylene copolymers, zirconocene catalysts, methylaluminoxane, 13C NMR resonance assignment, catalyst selectivity

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