High Molecular Weight Polypropylene through Specifically DesigneZirconocene Catalysts

Walter Spaleck, Martin Antberg, Jürgen Rohrmann, Andreas Winter, Bernd Bachmann, Paul Kiprof, Joachim Behm, Wolfgang A. Herrmann

Research output: Contribution to journalArticlepeer-review

299 Scopus citations

Abstract

A breakthrough for the technical application of zirconium catalysts in isotactic propylene polymerization has been achieved with complexes 1. The highest molecular mass of polypropylene, the best isotacticity, and the highest activity of all catalysts are provided by 1, R1 = R3 = CH3, R2 = i‐C3,H7. Hydrogenation of the six‐membered ring drastically lowers the activity and the molecular mass obtained. (Figure Presented.)

Original languageEnglish (US)
Pages (from-to)1347-1350
Number of pages4
JournalAngewandte Chemie International Edition in English
Volume31
Issue number10
DOIs
StatePublished - Oct 1992

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