Direct synthesis of pyridyl disulfide-terminated polymers by RAFT polymerization

Liu, J., Bulmus, V., Barner-Kowollik, C., Stenzel, M. H., & Davis, T. P. (2007) Direct synthesis of pyridyl disulfide-terminated polymers by RAFT polymerization. Macromolecular Rapid Communications, 28(3).

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A trithiocarbonate RAFT agent was modified with a pyridyl disulfide group and used in the direct synthesis of endgroup pyridyl disumde-functionalized homo- and amphiphilic block copolymers of oligo(ethyleneglycol) acrylate (PEG-A) and butyl acrylate (BA). Both the homoand copolymerizations were found to be well controlled via the RAFT mechanism. The NMR analysis indicated that both the homopolymers of PEG-A and the amphiphilic diblock copolymers of PEG-A and BA possessed pyridyl disulfide terminal groups. A UV-Vis absorption test revealed that the pyridyl disulfide endgroup of the polymer could be efficiently used to couple thiol-bearing molecules to the polymer without the need for any post-polymerization modification. This communication presents the first efficient direct synthesis of thiol-reactive endgroup-functionalized well-defined polymers via the RAFT technique. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

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ID Code: 99153
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :76
Export Date: 5 September 2016
Correspondence Address: Bulmus, V.; Centre for Advanced Macromolecular Design, School of Chemical Sciences and Engineering, University of New South Wales, Sydney, NSW 2052, Australia; email:
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Keywords: Amphiphilic copolymers, Conjugated polymers, Reversible addition fragmentation chain transfer (RAFT) polymerization, Telechelics, Thiol disulfide exchange, Block copolymers, Nuclear magnetic resonance, Polyethylene glycols, Polymerization, Synthesis (chemical), Ultraviolet visible spectroscopy, Butyl acrylate, Pyridyl disulfide, RAFT polymerization, Trithiocarbonate, Polymers
DOI: 10.1002/marc.200600693
ISSN: 10221336
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 12 Oct 2016 05:05

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