Journal
POLYMER CHEMISTRY
Volume 12, Issue 20, Pages 2932-2946Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1py00020a
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Funding
- TOTAL SA
- CNRS (Cellule energie)
- CNRS, Universite Paris-Saclay
- ANR [CoCaBio ANR-19HC2503]
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Polyester synthesis through eco-friendly methods is a major challenge today, with metal complexes playing a crucial role as catalysts and initiators in the process. The use of metal-free organo-catalysts/initiators remains to be explored, with interesting developments reported over the past five years. This area of organo-catalyzed/initiated processes is still in its infancy but holds great potential for further advancements.
Polyesters are omnipresent in our everyday lives and their synthesis via eco-friendly methods is becoming a major challenge today. The co-polymerization of cyclic anhydrides and epoxides was first reported by Fischer in 1960 involving a tertiary amine as an initiator. Since then, metal complexes have been used as catalysts in this process, Inoue being a major contributor in this area until Coates' breakthrough using a zinc-based catalyst leading to high molecular weight polymers. Such a pathway to polyesters is the most promising method for accessing a large array of polyesters given the large pool of commercially available or easily synthesizable epoxides and cyclic anhydrides. To date, the use of metal-free organo-catalysts/initiators in this co-polymerization remains to be explored; this area is still in its infancy but interesting developments have been reported over the past five years. In this review, we provide a complete overview of such organo-catalyzed/initiated processes since 2015.
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