Structure and physical properties of syndiotactic polypropylene from living polymerization with Bis(phenoxyimine)-based titanium catalysts

Claudio De Rosa, Teresa Circelli, Finizia Auriemma, Robert Timothy Mathers, Geoffrey W. Coates

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

The structure and mechanical properties of syndiotactic polypropylene prepared with non-metallocene catalysts, based on titanium chlorides bearing phenoxyimine ligands are discussed. This catalyst promotes living polymerization of propylene, producing high molecular weight syndiotactic polypropylene. The effect of the presence of m dyads defects of stereoregularity, consistent with the chain-end mechanism, and defects of regioregularity, due to (1,2) misinsertions, on the crystallization behavior and mechanical properties are analyzed. The presence of m dyads defects of stereoregularity prevents the crystallization of the fully ordered antichiral helical form I.

Original languageEnglish (US)
Pages (from-to)9034-9047
Number of pages14
JournalMacromolecules
Volume37
Issue number24
DOIs
StatePublished - Nov 30 2004

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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