Issue 1, 2024

Divergent methods for polyester and polycarbonate depolymerization with a cobalt catalyst

Abstract

A pyridine diimine cobalt catalyst series is used for the cyclodepolymerization (CDP) of several different polyesters and polycarbonates. In the presence of isopropanol, a wide range of polymers can undergo solvolytic depolymerization. CDP of poly(propylene carbonate) revealed an unzip back-biting or random scission mechanism, depending on what conditions were used. The first example of a method capable of solvolysis and CDP on a polymer mixture in the same pot is identified.

Graphical abstract: Divergent methods for polyester and polycarbonate depolymerization with a cobalt catalyst

Supplementary files

Article information

Article type
Research Article
Submitted
13 sep 2023
Accepted
17 nov 2023
First published
27 nov 2023

Inorg. Chem. Front., 2024,11, 298-309

Divergent methods for polyester and polycarbonate depolymerization with a cobalt catalyst

K. D. Knight and M. E. Fieser, Inorg. Chem. Front., 2024, 11, 298 DOI: 10.1039/D3QI01833D

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