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

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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
Official Date:	2012
Dates:	Date Event 2012 Published
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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