Effect of Polymerization Components on Oxygen-Tolerant Photo-ATRP

Manon Rolland; Richard Whitfield; Daniel Messmer; Kostas Parkatzidis; Nghia P. Truong; Athina Anastasaki

doi:10.1021/acsmacrolett.9b00855

Effect of Polymerization Components on Oxygen-Tolerant Photo-ATRP

Manon Rolland, Richard Whitfield, Daniel Messmer, Kostas Parkatzidis, Nghia P. Truong, Athina Anastasaki

Research output: Contribution to journal › Article › Research › peer-review

17 Citations (Scopus)

Abstract

Photo-ATRP has recently emerged as a powerful technique that allows for oxygen-tolerant polymerizations and the preparation of polymers with low dispersity and high end-group fidelity. However, the effect of various photo-ATRP components on oxygen consumption and polymerization remains elusive. Herein, we employ an in situ oxygen probe and UV-vis spectroscopy to elucidate the effects of ligand, initiator, monomer, and solvent on oxygen consumption. We found that the choice of photo-ATRP components significantly impacts the rate at which the oxygen is consumed and can subsequently affect both the polymerization time and the dispersity of the resulting polymer. Importantly, we discovered that using the inexpensive ligand TREN results in the fastest oxygen consumption and shortest polymerization time, even though no appreciable reduction of CuBr₂ is observed. This work provides insight into oxygen consumption in photo-ATRP and serves as a guideline to the judicious selection of photo-ATRP components for the preparation of well-defined polymers.

Original language	English
Pages (from-to)	1546-1551
Number of pages	6
Journal	ACS Macro Letters
Volume	8
Issue number	12
DOIs	https://doi.org/10.1021/acsmacrolett.9b00855
Publication status	Published - Dec 2019
Externally published	Yes

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10.1021/acsmacrolett.9b00855

Link to publication in Scopus

Cite this

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title = "Effect of Polymerization Components on Oxygen-Tolerant Photo-ATRP",

abstract = "Photo-ATRP has recently emerged as a powerful technique that allows for oxygen-tolerant polymerizations and the preparation of polymers with low dispersity and high end-group fidelity. However, the effect of various photo-ATRP components on oxygen consumption and polymerization remains elusive. Herein, we employ an in situ oxygen probe and UV-vis spectroscopy to elucidate the effects of ligand, initiator, monomer, and solvent on oxygen consumption. We found that the choice of photo-ATRP components significantly impacts the rate at which the oxygen is consumed and can subsequently affect both the polymerization time and the dispersity of the resulting polymer. Importantly, we discovered that using the inexpensive ligand TREN results in the fastest oxygen consumption and shortest polymerization time, even though no appreciable reduction of CuBr2 is observed. This work provides insight into oxygen consumption in photo-ATRP and serves as a guideline to the judicious selection of photo-ATRP components for the preparation of well-defined polymers.",

author = "Manon Rolland and Richard Whitfield and Daniel Messmer and Kostas Parkatzidis and Truong, {Nghia P.} and Athina Anastasaki",

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T1 - Effect of Polymerization Components on Oxygen-Tolerant Photo-ATRP

AU - Rolland, Manon

AU - Whitfield, Richard

AU - Messmer, Daniel

AU - Parkatzidis, Kostas

AU - Truong, Nghia P.

AU - Anastasaki, Athina

PY - 2019/12

Y1 - 2019/12

N2 - Photo-ATRP has recently emerged as a powerful technique that allows for oxygen-tolerant polymerizations and the preparation of polymers with low dispersity and high end-group fidelity. However, the effect of various photo-ATRP components on oxygen consumption and polymerization remains elusive. Herein, we employ an in situ oxygen probe and UV-vis spectroscopy to elucidate the effects of ligand, initiator, monomer, and solvent on oxygen consumption. We found that the choice of photo-ATRP components significantly impacts the rate at which the oxygen is consumed and can subsequently affect both the polymerization time and the dispersity of the resulting polymer. Importantly, we discovered that using the inexpensive ligand TREN results in the fastest oxygen consumption and shortest polymerization time, even though no appreciable reduction of CuBr2 is observed. This work provides insight into oxygen consumption in photo-ATRP and serves as a guideline to the judicious selection of photo-ATRP components for the preparation of well-defined polymers.

AB - Photo-ATRP has recently emerged as a powerful technique that allows for oxygen-tolerant polymerizations and the preparation of polymers with low dispersity and high end-group fidelity. However, the effect of various photo-ATRP components on oxygen consumption and polymerization remains elusive. Herein, we employ an in situ oxygen probe and UV-vis spectroscopy to elucidate the effects of ligand, initiator, monomer, and solvent on oxygen consumption. We found that the choice of photo-ATRP components significantly impacts the rate at which the oxygen is consumed and can subsequently affect both the polymerization time and the dispersity of the resulting polymer. Importantly, we discovered that using the inexpensive ligand TREN results in the fastest oxygen consumption and shortest polymerization time, even though no appreciable reduction of CuBr2 is observed. This work provides insight into oxygen consumption in photo-ATRP and serves as a guideline to the judicious selection of photo-ATRP components for the preparation of well-defined polymers.

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