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The construction of a linear-dendritic block copolymer consisting of terminal cholesteryl moiety, poly(epsilon-caprolactone), and a second generation L-lysine dendron has been accomplished by the combination of copper(I) catalyzed azide-alkyne and UV-triggered thiol-ene "click" reactions. Ring-opening polymerization of E-caprolactone initiated by 5-hexyn-1-ol and Mitsunobu coupling with 4-pentenoic acid provide hetero-telechelic poly(epsilon-caprolactone) bearing terminal alkyne and alkene groups. It is then employed in the sequential "click" reactions with the azide-functionalized dendritic wedge and thiocholesterol. Near to quantitative functionalization of the intermediate and final products has been attained as confirmed by NMR spectroscopy and MALDI-TOF spectrometry.
Original languageEnglish
JournalPOLYMER CHEMISTRY
Volume1
Issue number4
Pages (from-to)506-513
ISSN1759-9954
DOIs
StatePublished - 2010
Peer-reviewedYes
CitationsWeb of Science® Times Cited: 24
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