Issue 43, 2022

Reusable polymer brush-based photocatalysts for PET-RAFT polymerization

Abstract

This contribution discusses the control over polymerizations using a heterogeneous photocatalyst based on fluorescein polymer brushes tethered to micron-scale glass supports (FPB@SiO2). FPB@SiO2-catalyzed photoinduced electron/energy transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization is shown to provide high conversions, controlled molecular weights and narrow molecular weight distributions for a variety of monomers. Moreover, the beads can catalyze PET-RAFT on gram scales, in the presence of oxygen, while allowing full catalyst recovery through simple filtration. Finally, their high shelf-life allows for multiple polymerizations and user-friendly access to precision macromolecules under mild reaction conditions even after prolonged (months) storage time.

Graphical abstract: Reusable polymer brush-based photocatalysts for PET-RAFT polymerization

Supplementary files

Article information

Article type
Communication
Submitted
24 iyl 2022
Accepted
18 okt 2022
First published
25 okt 2022

Polym. Chem., 2022,13, 6120-6126

Author version available

Reusable polymer brush-based photocatalysts for PET-RAFT polymerization

K. Bell, S. Freeburne, A. Wolford and C. W. Pester, Polym. Chem., 2022, 13, 6120 DOI: 10.1039/D2PY00966H

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