Issue 4, 2023

The development of highly efficient monophosphonium photocatalysts for the visible light-regulated metal-free cationic polymerization of vinyl ethers

Abstract

A class of monophosphonium photocatalysts is developed via the assembly of phosphines and alkynes, and demonstrated as efficient organic photoredox catalysts for the visible light-mediated cationic reversible addition–fragmentation chain transfer (RAFT) polymerization of vinyl ethers. This organocatalytic process can be carried out at a low catalyst loading (5–20 ppm), affording metal-free and well-defined poly(vinyl ether)s with predictable molecular weight and narrow dispersity in short reaction times. Remarkably, these photocatalysts could regulate the chain-growth by light with a strict temporal control, and also allow a preliminary correlation between the structure/property of the catalysts and their catalytic performance.

Graphical abstract: The development of highly efficient monophosphonium photocatalysts for the visible light-regulated metal-free cationic polymerization of vinyl ethers

Supplementary files

Article information

Article type
Paper
Submitted
28 Nov 2022
Accepted
21 Dec 2022
First published
22 Dec 2022

Polym. Chem., 2023,14, 486-491

The development of highly efficient monophosphonium photocatalysts for the visible light-regulated metal-free cationic polymerization of vinyl ethers

J. Chen, J. Lin, Z. Yang, Y. Wu and S. Liao, Polym. Chem., 2023, 14, 486 DOI: 10.1039/D2PY01493A

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