Living free radical polymerization of cyclodextrin host-guest complexes of styrene via the reversible Addition Fragmentation Chain Transfer (RAFT) process in aqueous solution

Köllisch, H., Barner-Kowollik, C., & Ritter, H. (2006) Living free radical polymerization of cyclodextrin host-guest complexes of styrene via the reversible Addition Fragmentation Chain Transfer (RAFT) process in aqueous solution. Macromolecular Rapid Communications, 27(11).

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Host-guest complexes of styrene and randomly methylated β-cyclodextrin (m-β-CD) were polymerized in aqueous medium via the reversible addition fragmentation chain transfer (RAFT) process. 3-Benzylsulfanylthiocarbo- nylsulfanylpropionic acid (TTC) was used as trithiocarbonate-type RAFT agent. The results indicate a controlled character of the polymerization of the styrene complexes as the number-average molecular weight, M̄n, increases linearly with monomer to polymer conversion; however, the molecular weights of the obtained polystyrenes deviate to higher values than those theoretically predicted. Nevertheless, the molecular weights can be controlled by variation of the initial RAFT agent concentration. The polystyrenes produced in this system exhibited narrower polydispersities (1.23 < M̄W/M̄n < 2.36) than those produced without RAFT agent (5.24<M̄W/M̄n<9.21) under similar conditions. The present contribution represents the first example of RAFT polymerization of a m-β-CD-complexed hydrophobic vinylmonomer (styrene) from homogenous aqueous solution. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.

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ID Code: 99127
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :27
Export Date: 5 September 2016
Correspondence Address: Barner-Kowollik, C.; Centre for Advanced Maeromolecular Design, School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney, NSW 2052, Australia; email:
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Keywords: Cyclodextrin, Homopolymerization, Host-guest systems, Reversible addition fragmentation chain transfer (RAFT), Styrene, Carbonates, Concentration (process), Free radical polymerization, Hydrophobicity, Molecular weight, Monomers, Hydrophobic vinylmonomer
DOI: 10.1002/marc.200600067
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: 30 Sep 2016 02:09

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