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

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-openin...

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Bibliographic Details
Published in:Sustainability 2009-12, Vol.1 (4), p.1226-1239
Main Authors: Börner, Janna, Herres-Pawlis, Sonja, Jones, Matthew D, Flörke, Ulrich, Kuckling, Dirk, Döring, Artjom
Format: Article
Language:English
Subjects:
Biodegradable materials
Biodegradation
biopolymers
Green chemistry
lactide
Ligands
Molecular structure
N-donor ligands
Polyesters
ring-opening polymerisation
Solvents
Sustainability
sustainable chemistry
Zinc
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Summary: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.
ISSN:2071-1050
2071-1050
DOI:10.3390/su1041226