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Inicio  /  Sustainability  /  Vol: 1 Núm: 4 Par: Decembe (2009)  /  Artículo
ARTÍCULO
TITULO

New Challenge for Classics: Neutral Zinc Complexes Stabilised by 2,2?-Bipyridine and 1,10-Phenanthroline and Their Application in the Ring-Opening Polymerisation of Lactide

Janna Börner    
Ulrich Flörke    
Artjom Döring    
Dirk Kuckling    
Matthew D. Jones and Sonja Herres-Pawlis    

Resumen

The zinc acetato and triflato complexes of 2,2?-bipyridine and 1,10-phenanthroline were prepared and completely characterised. The whole series (including the already described dichlorido complexes and the ligands themselves) were screened for their catalytic activity in the solvent free ring-opening polymerisation of D,L-lactide. The acetato and triflato complexes were found to be active initiators and polylactides could be obtained in almost quantitative yields or with high molecular weights, up to 145,000 g/mol.

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