Zn(ii) and Cu(ii) formamidine complexes: structural, kinetics and polymer tacticity studies in the ring-opening polymerization of ε-caprolactone and lactides

2016 ◽  
Vol 40 (4) ◽  
pp. 3499-3510 ◽  
Author(s):  
Ekemini D. Akpan ◽  
Stephen O. Ojwach ◽  
Bernard Omondi ◽  
Vincent O. Nyamori
Keyword(s):  
Coordination Chemistry ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Metal Centers ◽  
Cyclic Esters ◽  
Polymer Tacticity

The flexibility of ligands and their coordination chemistry with metal centers provided effective catalysts in the ring opening polymerization of cyclic esters.

Hybrid Scorpionate/Cyclopentadienyl Magnesium and Zinc Complexes: Synthesis, Coordination Chemistry, and Ring-Opening Polymerization Studies on Cyclic Esters

2010 ◽  
Vol 49 (6) ◽  
pp. 2859-2871 ◽  
Author(s):  
Andrés Garcés ◽  
Luis F. Sánchez-Barba ◽  
Carlos Alonso-Moreno ◽  
Mariano Fajardo ◽  
Juan Fernández-Baeza ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Zinc Complexes ◽  
Cyclic Esters

A switchable dimeric yttrium complex and its three catalytic states in ring opening polymerization

2021 ◽  
Author(s):  
Shijie Deng ◽  
Paula L. Diaconescu
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Oxidation States ◽  
Cyclic Esters

A dimeric yttrium phenoxide complex can be oxidized in a stepwise fashion to access three oxidation states. The three states show different activity in the ring opening polymerization of cyclic esters and epoxides.

Controlling polymer stereochemistry in ring-opening polymerization: a decade of advances shaping the future of biodegradable polyesters

2021 ◽  
Author(s):  
Mathieu J.-L. Tschan ◽  
Régis M. Gauvin ◽  
Christophe M. Thomas
Keyword(s):  
Biodegradable Polymer ◽  
Ring Opening ◽  
Polymer Synthesis ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Biodegradable Polyesters ◽  
The Future ◽  
Recent Developments

In this review, we describe recent developments in biodegradable polymer synthesis with a focus on the use of discrete complexes and organocatalysts as active initiators for the stereocontrolled ring-opening polymerization of cyclic esters.

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