Issue 20, 2023

Bio-based captodative ligands for redox polymerization of Elium® thermoplastic composites under mild conditions

Abstract

Thermoplastic polymers obtained from resins such as Elium® combine desirable properties, including recyclability/reusability and excellent thermomechanical performances, at a relatively affordable cost. Nevertheless, their polymerization often requires a high amount of energy and/or involves hazardous chemical compounds. To address this last point, a series of bio-based captodative ligands was designed and synthesized in order to replace controversial phosphine oxides commonly used in low-energy initiating systems but suffering from toxicity issues. By using these captodative ligands, the curing time required for the polymerization of Elium® could be reduced from more than one hour to a mere 10 minutes. To gain a deeper insight into the redox mechanism involved during the polymerization process, the redox properties of a series of manganese(III) complexes containing different captodative ligands have been investigated employing cyclic voltammetry. It has been demonstrated that ligand exchange reactions induced by using the captodative (or push–pull) ligands possessing both electron-donating and electron-withdrawing groups had a significant impact on the reduction potential of the manganese(III) complexes. The reduction potential significantly changed depending on the type of heteroatom atom (X = O, S) and substituent included in the scaffold of the captodative ligands.

Graphical abstract: Bio-based captodative ligands for redox polymerization of Elium® thermoplastic composites under mild conditions

Supplementary files

Article information

Article type
Paper
Submitted
10 ဩ 2023
Accepted
04 စက် 2023
First published
08 စက် 2023

Green Chem., 2023,25, 8226-8240

Bio-based captodative ligands for redox polymerization of Elium® thermoplastic composites under mild conditions

N. Giacoletto, M. Le Dot, H. Cherif, F. Morlet-Savary, B. Graff, V. Monnier, D. Gigmes, F. Dumur, H. Olleik, M. Maresca, P. Gerard, M. Nechab and J. Lalevée, Green Chem., 2023, 25, 8226 DOI: 10.1039/D3GC03001F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements