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Single addition of an allylamine monomer enables access to end-functionalized RAFT polymers for native chemical ligation
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Isahak, Naatasha, Gody, Guillaume, Malins, Lara R., Mitchell, Nicholas J., Payne, Richard J. and Perrier, Sébastien (2016) Single addition of an allylamine monomer enables access to end-functionalized RAFT polymers for native chemical ligation. Chemical Communications, 52 (88). pp. 12952-12955. doi:10.1039/C6CC06010B ISSN 1359-7345.
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Official URL: http://dx.doi.org/10.1039/C6CC06010B
Abstract
Controlled radical polymerization methods and click chemistry form a versatile toolbox for creating complex polymer architectures. However, the incompatibility between the functional groups required for click reactions and the reaction conditions of radical polymerization techniques often limits application. Here, we demonstrate how combining two complementary click reactions in a sequence circumvents compatibility issues. We employ isocyanate-amine addition on a polymer obtained by RAFT without purification, thus allowing us to work at exact equimolarity. The addition of commercially available amine-functional azido or strained alkyne compounds, yields orthogonally modified polymers, which can be coupled together in a subsequent strain promoted cycloaddition (SPAAC). The efficiency of this reaction sequence is demonstrated with different acrylate, methacrylate, and acrylamide polymers giving block copolymers in high yield. The resulting diblock copolymers remain active towards RAFT polymerization, thus allowing access to multiblock structures by simple chain extension. The orthogonality of the isocyanate-amine reaction, SPAAC and RAFT polymerization (both in terms of monomer and chain end groups) is a key advantage and offers access to functional and challenging polymer architectures without the need for stringent reaction conditions or laborious intermediate purifications.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
Library of Congress Subject Headings (LCSH): | Addition polymerization, Polymers, Monomers, Peptides, Fragmentation reactions | ||||||||
Journal or Publication Title: | Chemical Communications | ||||||||
Publisher: | Royal Society of Chemistry | ||||||||
ISSN: | 1359-7345 | ||||||||
Official Date: | 23 September 2016 | ||||||||
Dates: |
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Volume: | 52 | ||||||||
Number: | 88 | ||||||||
Page Range: | pp. 12952-12955 | ||||||||
DOI: | 10.1039/C6CC06010B | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 14 November 2016 | ||||||||
Date of first compliant Open Access: | 23 September 2017 | ||||||||
Funder: | Australia. Department of Education, Science, and Training, Australian Research Council (ARC), Royal Society (Great Britain). Wolfson Research Merit Award (RSWRMA), Monash-Warwick Alliance | ||||||||
Grant number: | T130100150 (ARC), WM130055 (RSWRMA) |
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