Issue 5, 2019

Redox-switchable atom transfer radical polymerization

Abstract

Temporal control in atom transfer radical polymerization (ATRP) relies on modulating the oxidation state of a copper catalyst, as polymer chains are activated by L/CuI and deactivated by L/CuII. (Re)generation of L/CuI activator has been achieved by applying a multitude of external stimuli. However, switching the Cu catalyst off by oxidizing to L/CuII through external chemical stimuli has not yet been investigated. A redox switchable ATRP was developed in which an oxidizing agent was used to oxidize L/CuI activator to L/CuII, thus halting the polymerization. A ferrocenium salt or oxygen were used to switch off the Cu catalyst, whereas ascorbic acid was used to switch the catalyst on by (re)generating L/CuI. The redox switches efficiently modulated the oxidation state of the catalyst without sacrificing control over polymerization.

Graphical abstract: Redox-switchable atom transfer radical polymerization

Supplementary files

Article information

Article type
Communication
Submitted
19 Du 2018
Accepted
12 Ker. 2018
First published
19 Ker. 2018

Chem. Commun., 2019,55, 612-615

Author version available

Redox-switchable atom transfer radical polymerization

S. Dadashi-Silab, F. Lorandi, M. Fantin and K. Matyjaszewski, Chem. Commun., 2019, 55, 612 DOI: 10.1039/C8CC09209E

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