Ultrahigh molecular weight polypropene elastomers by high activity "dual-side" hafnocene catalysts

Bernhard Rieger, Carsten Troll, Judith Preuschen

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

Recently, an asymmetric ansa-zirconocene dichloride complex that is able to introduce single stereoerrors into an isotactic polypropene chain as a function of monomer concentration is described. Though, one major requirement for the practical application of such new materials is a molecular weight high enough to ensure satisfying tensile and creep properties below and above room temperature. This paper reports on a series of new asymmetric zirconocene dimethyl, hafnocene dichloride, and hafnocene dimethyl complexes for the homopolymerization of propene in toluene solution and in liquid monomer after MAO and borate activation.

Original languageEnglish
Pages (from-to)5742-5743
Number of pages2
JournalMacromolecules
Volume35
Issue number15
DOIs
StatePublished - 16 Jul 2002
Externally publishedYes

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