Rare-earth metal complexes as catalysts for ring-opening polymerization of cyclic esters -
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Applications of transition metal amidinate [RC (NR′) 2], guanidinate and amidopyridine
complexes to olefin coordination polymerization are reviewed. In addition, the use of …

Polylactide (PLA) is an attractive polymeric material due to its origin from annually
renewable resources and its biodegradability. The ring-opening polymerization (ROP) of …

The activity of an yttrium alkoxide complex supported by a ferrocene-based ligand was
controlled using redox reagents during the ring-opening polymerization of l-lactide. The …

Highly active yttrium phosphasalen initiators for the stereocontrolled ring-opening
polymerization of rac-lactide are reported. The initiators are coordinated by a new class of …

A range of simple ethylenediamine based Zn (II) and Mg (II) complexes have been prepared
and their structures determined via NMR spectroscopy and X-ray crystallography …

This review describes recent advances in the synthesis of homopolymers of lactide and
related cyclic esters via ring-opening polymerization (ROP) in the presence of metal …

Preparation and characterization of three yttrium alkoxide complexes with new
phosphasalen ligands are reported. The phosphasalens are analogues of the well-known …

Yttrium and aluminum complexes of an original pyridine-bis (phenolate) ligand have been
prepared. Reactions of {ONOMe, Cumyl} Y [N (SiHMe2) 2](THF)(Et2O)(1) with 1 equiv of …

In this paper, we report the preparation and characterization of a series of unsymmetrical
group 4 metal complexes based on ONNO salalen-type ligands. In these examples, the …