Synthesis of Various Glycopolymer Architectures via RAFT Polymerization: From Block Copolymers to Stars
- 13 December 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Biomacromolecules
- Vol. 7 (1) , 232-238
- https://doi.org/10.1021/bm0506086
Abstract
Well-defined linear poly(acryloyl glucosamine) (PAGA) exhibiting molar masses ranging from 3 to 120 K and low polydispersities have been prepared via reversible addition-fragmentation chain transfer polymerization (RAFT) in aqueous solution without recourse to protecting group chemistry. The livingness of the process was further demonstrated by successfully chain-extending one of these polymers with N-isopropylacrylamide affording narrow dispersed thermosensitive diblocks. This strategy of polymerization was finally extended to the preparation of glycopolymer stars from Z designed non-water-soluble trifunctional RAFT agent. After the growth of very short blocks of poly(hydroxyethyl acrylate) ( nbranch = 10), AGA was polymerized in aqueous solution in a controlled manner affording well-defined 3-arm glycopolymer stars.Keywords
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