Journal
EUROPEAN POLYMER JOURNAL
Volume 49, Issue 9, Pages 2660-2669Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2013.03.025
Keywords
Glycopolymer; LCST; Thiol-ene reaction; Lectin binding; ATRP
Categories
Funding
- Dutch Polymer Institute (DPI, technology area bio-inspired polymers)
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To prepare thermoresponsive glycopolymers, new alkene functional copolymers based on N-isopropylacrylamide were synthesized and functionalized with sugar moieties. The copolymerization of N-isopropylacrylamide with N-allylacrylamide by ATRP led to soluble, well-defined polymers which were reacted with 1-thiosugars via a thiol-ene reaction. In addition to H-1 NMR spectroscopy, FT-IR spectroscopy, elemental analysis and size exclusion chromatography, the glycopolymers were characterized by turbidimetry, which revealed sharp and reversible coil-to-globule transitions of the prepared copolymers. Furthermore, lectin binding studies revealed the interaction of the galactosylated polymers to the lectin RCA(120) depending on their degree of functionalization. The results demonstrate that the discussed synthetic strategy represents a practical and flexible route towards functional N-isopropylacrylamide copolymers. (C) 2013 Elsevier Ltd. All rights reserved.
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