Well-defined diblock glycopolymers from RAFT polymerization in homogeneous aqueous medium

Albertin, L., Stenzel, M. H., Barner-Kowollik, C., Foster, L. J. R., & Davis, T. P. (2005) Well-defined diblock glycopolymers from RAFT polymerization in homogeneous aqueous medium. Macromolecules, 38(22).

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Abstract

Reversible addition-fragmentation chain transfer polymerization was applied to the synthesis of well-defined diblock glycopolymers carrying different cyclic carbohydrates on the two blocks. The macroRAFT agents poly(methyl 6-O-methacryloyl-α-D-glucoside) dithiobenzoate and poly(2- methacryloxyethyl glucoside) dithiobenzoate were prepared by RAFT polymerization of the corresponding glycomonomers with (4-cyanopentanoic acid)-4- dithiobenzoate as the chain transfer agent. The reactions were stopped around 85% conversion in order to preserve the highest possible end-of-chain- functionality and the glycopolymers were isolated by precipitation in methanol. Chain extension with 2-methacryloxyethyl glucoside and methyl 6-O-methacryloyl-α-D-mannoside afforded poly(methyl 6-O-methacryloyl- α-D-glucoside-block-2-methacryloxyethyl glucoside) and poly(2-methacryloxyethyl glucoside-block-methyl 6-O-methacryloyl-α-D- mannoside), respectively, having a predetermined molecular weight and narrow polydispersity (PDI ≤ 1.20). The structure of the prepared polymers was confirmed by proton and carbon NMR and their thermal properties investigated via DSC. © 2005 American Chemical Society.

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ID Code: 99096
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :98
Export Date: 5 September 2016
CODEN: MAMOB
Correspondence Address: Davis, T.P.; Centre for Advanced Macromolecular Design, School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney, NSW 2052, Australia; email: camd@unsw.edu.au
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Keywords: Carbohydrates, Methanol, Nuclear magnetic resonance spectroscopy, Polymerization, Precipitation (chemical), Protons, Synthesis (chemical), Biblock glycopolymers, Chain transfer agents, Glycomoneomers, Polydispersity, Block copolymers
DOI: 10.1021/ma051310a
ISSN: 00249297
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: 22 Sep 2016 04:50

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