Sustainability 2009, 1(4), 1226-1239; doi:10.3390/su1041226
Article

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 1 email, Ulrich Flörke 1 email, Artjom Döring 1 email, Dirk Kuckling 1 email, Matthew D. Jones 2 email and Sonja Herres-Pawlis 3,* email
1 Department Chemie, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany 2 Department of Chemistry, University of Bath, Claverton Down, Bath BA27AY, United Kingdom 3 Department Chemie, Technische Universit¨at Dortmund, Otto-Hahn-Straße 6, 44227 Dortmund, Germany
* Author to whom correspondence should be addressed.
Received: 30 October 2009 / Accepted: 3 December 2009 / Published: 8 December 2009
(This article belongs to the Special Issue Sustainable Approaches within the Chemical Sciences)
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Abstract: 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.
Keywords: biopolymers; zinc; ring-opening polymerisation; lactide; sustainable chemistry; N-donor ligands

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MDPI and ACS Style

Börner, J.; Flörke, U.; Döring, A.; Kuckling, D.; Jones, M.D.; Herres-Pawlis, S. 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. Sustainability 2009, 1, 1226-1239.

AMA Style

Börner J., Flörke U., Döring A., Kuckling D., Jones M.D., Herres-Pawlis S. 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. Sustainability. 2009; 1(4):1226-1239.

Chicago/Turabian Style

Börner, Janna; Flörke, Ulrich; Döring, Artjom; Kuckling, Dirk; Jones, Matthew D.; Herres-Pawlis, Sonja. 2009. "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." Sustainability 1, no. 4: 1226-1239.

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