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Expanding the scope of the photoinduced living radical polymerization of acrylates in the presence of CuBr2and Me6-Tren
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Anastasaki, Athina, Nikolaou, Vasiliki, Simula, Alexandre, Godfrey, Jamie, Li, Muxiu, Nurumbetov, Gabit, Wilson, Paul and Haddleton, David M. (2014) Expanding the scope of the photoinduced living radical polymerization of acrylates in the presence of CuBr2and Me6-Tren. Macromolecules, 47 (12). pp. 3852-3859. doi:10.1021/ma500787d ISSN 0024-9297 .
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Official URL: http://dx.doi.org/10.1021/ma500787d
Abstract
Photoinduced living radical polymerization of acrylates is achieved upon UV irradiation (λmax ≈ 360 nm) in the presence of an aliphatic tertiary amine ligand (Me6-Tren) in the presence of low concentrations of CuBr2, yielding poly(acrylates) with near perfect retention of end group fidelity. The effect of the nature of the solvent on the rate of polymerization was investigated in order to expand the scope and identify the limitations of the system. Subsequently, a range of acrylic monomers containing hydrophobic and hydrophilic substituents have been screened, including lauryl acrylate, octadecyl acrylate and diethylene glycol ethyl ether acrylate, all of which present low dispersities (Đ ≈ 1.1) at very high conversions. Functional monomers, including glycidyl acrylate and solketal acrylate, were also found to be tolerant to the photomediated reaction. Finally, solketal acrylate was copolymerized with methyl acrylate which, following deprotection of the pendant ketal group, furnished an amphiphilic diblock copolymer. Self-assembly of this block copolymer into polymer micelles in aqueous media was exemplified by dynamic light scattering (DLS) and transmission electron microscopy (TEM).
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
| Journal or Publication Title: | Macromolecules | ||||
| Publisher: | American Chemical Society | ||||
| ISSN: | 0024-9297 | ||||
| Official Date: | 6 June 2014 | ||||
| Dates: |
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| Volume: | 47 | ||||
| Number: | 12 | ||||
| Page Range: | pp. 3852-3859 | ||||
| DOI: | 10.1021/ma500787d | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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