No reduction of CuBr 2 during Cu(0)-catalyzed living radical polymerization of methyl acrylate in DMSO at 25 °c

Martin E. Levere; Nga H. Nguyen; Virgil Percec

doi:10.1021/ma301547n

No reduction of CuBr ₂ during Cu(0)-catalyzed living radical polymerization of methyl acrylate in DMSO at 25 °c

Martin E. Levere, Nga H. Nguyen, Virgil Percec

Faculty of Science

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

65 Citations (SciVal)

Abstract

The Cu(0)/Me ₆-TREN-catalyzed polymerization of methyl acrylate (MA) initiated by methyl 2-bromopropionate (MBP) in DMSO at 25 °C was performed in a UV cuvette, and the absorbance of CuBr ₂ was monitored online in a UV-vis spectrophotometer as a function of the monomer conversion. A continuous increase of CuBr ₂ absorbance throughout the reaction demonstrated no reduction of CuBr ₂ concentration during the entire polymerization process. In addition, the 100% chain-end functionality of the polymer observed from 10% to 95% monomer conversion indicated that in this polymerization the bimolecular termination required to provide the persistent radical effect in ATRP was not responsible for the production of CuBr ₂.

Original language	English
Pages (from-to)	8267-8274
Number of pages	8
Journal	Macromolecules
Volume	45
Issue number	20
Early online date	11 Oct 2012
DOIs	https://doi.org/10.1021/ma301547n
Publication status	Published - 23 Oct 2012

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma301547n

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title = "No reduction of CuBr 2 during Cu(0)-catalyzed living radical polymerization of methyl acrylate in DMSO at 25 °c",

abstract = "The Cu(0)/Me 6-TREN-catalyzed polymerization of methyl acrylate (MA) initiated by methyl 2-bromopropionate (MBP) in DMSO at 25 °C was performed in a UV cuvette, and the absorbance of CuBr 2 was monitored online in a UV-vis spectrophotometer as a function of the monomer conversion. A continuous increase of CuBr 2 absorbance throughout the reaction demonstrated no reduction of CuBr 2 concentration during the entire polymerization process. In addition, the 100% chain-end functionality of the polymer observed from 10% to 95% monomer conversion indicated that in this polymerization the bimolecular termination required to provide the persistent radical effect in ATRP was not responsible for the production of CuBr 2.",

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T1 - No reduction of CuBr 2 during Cu(0)-catalyzed living radical polymerization of methyl acrylate in DMSO at 25 °c

AU - Levere, Martin E.

AU - Nguyen, Nga H.

AU - Percec, Virgil

PY - 2012/10/23

Y1 - 2012/10/23

N2 - The Cu(0)/Me 6-TREN-catalyzed polymerization of methyl acrylate (MA) initiated by methyl 2-bromopropionate (MBP) in DMSO at 25 °C was performed in a UV cuvette, and the absorbance of CuBr 2 was monitored online in a UV-vis spectrophotometer as a function of the monomer conversion. A continuous increase of CuBr 2 absorbance throughout the reaction demonstrated no reduction of CuBr 2 concentration during the entire polymerization process. In addition, the 100% chain-end functionality of the polymer observed from 10% to 95% monomer conversion indicated that in this polymerization the bimolecular termination required to provide the persistent radical effect in ATRP was not responsible for the production of CuBr 2.

AB - The Cu(0)/Me 6-TREN-catalyzed polymerization of methyl acrylate (MA) initiated by methyl 2-bromopropionate (MBP) in DMSO at 25 °C was performed in a UV cuvette, and the absorbance of CuBr 2 was monitored online in a UV-vis spectrophotometer as a function of the monomer conversion. A continuous increase of CuBr 2 absorbance throughout the reaction demonstrated no reduction of CuBr 2 concentration during the entire polymerization process. In addition, the 100% chain-end functionality of the polymer observed from 10% to 95% monomer conversion indicated that in this polymerization the bimolecular termination required to provide the persistent radical effect in ATRP was not responsible for the production of CuBr 2.

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VL - 45

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JO - Macromolecules

JF - Macromolecules

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ER -

No reduction of CuBr ₂ during Cu(0)-catalyzed living radical polymerization of methyl acrylate in DMSO at 25 °c

Abstract

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