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Aqueous copper(II) photoinduced polymerization of acrylates : low copper concentration and the importance of sodium halide salts
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Jones, Glen R., Whitfield, Richard, Anastasaki, Athina and Haddleton, David M. (2016) Aqueous copper(II) photoinduced polymerization of acrylates : low copper concentration and the importance of sodium halide salts. Journal of the American Chemical Society . doi:10.1021/jacs.6b02701 ISSN 0002-7863.
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WRAP_9370782-ch-180516-jacs_manuscript_accepted.pdf - Accepted Version - Requires a PDF viewer. Download (1359Kb) | Preview |
Official URL: http://dx.doi.org/10.1021/jacs.6b02701
Abstract
Photoinduced metal mediated radical polymerization is a rapidly developing technique which allows for the synthesis of macromolecules with defined molecular weight and narrow molecular weight distributions, although typically exhibiting significant limitations in aqueous media. Herein we demonstrate that the presence of alkali metal halide salts in conjunction with low copper concentration and UV irradiation, allows for the controlled polymerization of water soluble acrylates in aqueous media, yielding narrow molecular weight distributions and high conversions. Despite the aqueous environment which typically compromises polymer end group fidelity, chain extensions have also been successfully performed and different degrees of polymerization were targeted. Importantly, no conversion was observed in the absence of UV light and the polymerization could be switched “on” and “off” upon demand as demonstrated by intermittent light and dark periods and thus allowing access to spatiotemporal control.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||
| Library of Congress Subject Headings (LCSH): | Halides, Acrylates, Polymerization, Macromolecules | ||||||
| Journal or Publication Title: | Journal of the American Chemical Society | ||||||
| Publisher: | American Chemical Society | ||||||
| ISSN: | 0002-7863 | ||||||
| Official Date: | 17 May 2016 | ||||||
| Dates: |
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| DOI: | 10.1021/jacs.6b02701 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Date of first compliant deposit: | 19 May 2016 | ||||||
| Date of first compliant Open Access: | 17 May 2017 | ||||||
| Funder: | University of Warwick, Lubrizol Ltd., Syngenta Seeds Ltd., Wolfson Foundation (WF) |
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