Highly active and stereoselective zirconium and hafnium alkoxide initiators for solvent-free ring-opening polymerization of rac-lactide

Chem Commun (Camb). 2008 Mar 21:(11):1293-5. doi: 10.1039/b718678a. Epub 2008 Feb 15.

Abstract

Under solvent-free conditions (at 130 degrees C), zirconium and hafnium amine tris(phenolate) alkoxides are extremely active, well-controlled, single-site initiators for the ring-opening polymerization of rac-lactide, yielding highly heterotactic polylactide.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Hafnium / chemistry*
  • Indicators and Reagents
  • Kinetics
  • Models, Molecular
  • Molecular Weight
  • Organometallic Compounds / chemistry*
  • Polyesters / chemical synthesis*
  • Solvents
  • Stereoisomerism
  • X-Ray Diffraction
  • Zirconium / chemistry*

Substances

  • Indicators and Reagents
  • Organometallic Compounds
  • Polyesters
  • Solvents
  • poly(lactide)
  • Zirconium
  • Hafnium