Elastomers by atactic linkage of α‐olefins using soluble Ziegler catalysts
Abstract
With bis (cyclopentadienyl) zirconiumIV‐compounds and methylalumoxane as soluble Ziegler catalyst propylene can be polymerized to pure atactic polypropylene with molecular weights up to 600 000. The copolymerization of ethylene and propylene or butene gives elastomers with different properties. The butene units are distributed at random in the polyethylene chain as carried out by 13 C NMR measurements. The regiospecifity of the catalyst leads exclusively to the formation of head‐to‐tail enchainments. Using ethylene together with propylene and diolefins, EPDM rubber is formed. Glass transition temperatures of ‐60 to ‐50 °C could be observed.
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References 5 · Cited by 121
- Authors
- Kaminsky, W., & Schlobohm, M.
- Affiliations
- Universität Hamburg (DE)
- ORCID
- Kaminsky, W.
- Venue
- Makromolekulare Chemie. Macromolecular Symposia
- Publisher
- Wiley
- Published
- 1986-07
- Volume
- 4
- Issue
- 1
- Pages
- 103-118
- ISSN
- 0258-0322 (ISSN-L)
- OpenAlex
- W2001226458
- Cited by
- 121
- References
- 5
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 1 · 2021: 3 · 2020: 2 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 2 · 2013: 5 · 2012: 1
- FWCI
- 3.36
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Makromolekulare Chemie Macromolecular Symposia (publishedVersion)
- Topics
- Physical Sciences › Chemistry › Organic Chemistry › Organometallic Complex Synthesis and Catalysis
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- atactic polypropylene, elastomers, methylaluminoxane, propylene polymerization, ethylene-propylene copolymerization, EPDM rubber, glass transition temperature, dienes
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