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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. 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 |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of 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 |
| Date: | 2012 |
| Volume: | Vol.1 |
| Page Range: | pp. 222-226 |
| Identification Number: | 10.1021/mz200164x |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), University of Warwick |
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| URI: | http://wrap.warwick.ac.uk/id/eprint/40488 |
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