Acid-degradable core-crosslinked micelles prepared from thermosensitive glycopolymers synthesized via RAFT polymerization

Zhang, L., Bernard, J., Davis, T. P., Barner-Kowollik, C., & Stenzel, M. H. (2008) Acid-degradable core-crosslinked micelles prepared from thermosensitive glycopolymers synthesized via RAFT polymerization. Macromolecular Rapid Communications, 29(2).

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Abstract

A thermoresponsive block copolymer, namely poly(acryloyl glucosamine)-block-poly(N-isopropylacryamide) (PAGA180-b-PNIPAAM 350) was simultaneously self-assembled and crosslinked in aqueous medium via RAFT polymerization at 60°C to afford core-crosslinked micelles exhibiting a glycopolymer corona and a PNIPAAM stimuli-responsive core. An acid-labile crosslinking agent, 3,9-divinyl-2,4,8,10-tetraoxaspiro[5.5]- undecane, was employed to generate thermosensitive and acid-degradable core-shell nanoparticles. Stable against degradation at pH = 6 and 8.2, the resulting core crosslinked micelles readily hydrolyzed into well-defined free block copolymers at lower pH (30 min and 12 h respectively at pH = 2 and 4). © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

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ID Code: 99200
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :105
Export Date: 5 September 2016
CODEN: MRCOE
Correspondence Address: Stenzel, M.H.; Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, University of New South Wales, Sydney, NSW 2052, Australia; email: m.stenzel@unsw.edu.au
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Keywords: Acid-degradable, Crosslinked micelle, Glycopolymer, Reversible addition fragmentation chain transfer (RAFT), Stimulisensitive polymers, Block copolymers, Crosslinking, Polymerization, Self assembly, Synthesis (chemical), Crosslinked micelles, Micelles
DOI: 10.1002/marc.200700663
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: 10 Oct 2016 01:14

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