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Dibromomaleimide end functional polymers by RAFT polymerization without the need of protecting groups
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Robin, Mathew P., Jones, Mathew W., Haddleton, David M. and O'Reilly, Rachel K. (2012) Dibromomaleimide end functional polymers by RAFT polymerization without the need of protecting groups. ACS Macro Letters, Vol.1 . pp. 222-226. doi:10.1021/mz200164x ISSN 2161-1653.
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Official URL: http://dx.doi.org/10.1021/mz200164x
Abstract
Polymers bearing the dibromomaleimide (DBM) group as a functional chain end have been synthesized by RAFT polymerization. A DBM functional chain transfer agent (CTA) was utilized to afford well-defined PtBA, PMA, and PTEGA, without the requirement of protecting group chemistry. It was found that RAFT polymerization of NIPAM and styrene with this CTA was severely retarded/inhibited which is ascribed to their relatively low propagation rate constants compared to acrylates. This observation is accounted for by a reversible trapping of propagating radicals by the DBM group in RAFT polymerizations using a monomer with low kp. However, further attempts to synthesize DBM-terminated PtBA and PMA by ATRP using an analogous initiator were unsuccessful, and broad PDI were observed. Furthermore, highly efficient postpolymerization functionalization of DBM-terminated PMA produced by RAFT, with the model compound thiophenol was also demonstrated.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Library of Congress Subject Headings (LCSH): | Polymerization, Polymers, Protective groups (Chemistry) | ||||
Journal or Publication Title: | ACS Macro Letters | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 2161-1653 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.1 | ||||
Page Range: | pp. 222-226 | ||||
DOI: | 10.1021/mz200164x | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), University of Warwick |
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