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. © 2009 by the authors.
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Börner, J., Flörke, U., Döring, A., Kuckling, D., Jones, M. D., & Herres-Pawlis, S. (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(4), 1226–1239. https://doi.org/10.3390/su1041226