3‐miktoarm star terpolymers using triple click reactions: Diels–Alder, copper‐catalyzed azide‐alkyne cycloaddition, and nitroxide radical coupling reactions
作者： Ufuk Saim Gunay , Hakan Durmaz , Eda Gungor , Aydan Dag , Gurkan Hizal
DOI: 10.1002/POLA.25828
关键词:
摘要: Well-defined linear furan-protected maleimide-terminated poly(ethylene glycol) (PEG-MI), tetramethylpiperidine-1-oxyl-terminated poly(e-caprolactone) (PCL-TEMPO), and azide-terminated polystyrene (PS-N3) or -poly(N-butyl oxanorbornene imide) (PONB-N3) were ligated to an orthogonally functionalized core (1) in a two-step reaction mode through triple click reactions. In first step, Diels–Alder of PEG-MI with 1 was performed toluene at 110 °C for 24 h afford α-alkyne-α-bromide-terminated PEG (PEG-alkyne/Br). As second this precursor subsequently the PCL-TEMPO PS-N3 PONB-N3 N,N-dimethylformamide room temperature 12 catalyzed by Cu(0)/Cu(I) copper-catalyzed azide-alkyne cycloaddition nitroxide radical coupling reactions, yield resulting ABC miktoarm star polymers one-pot mode. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Chem, 2012
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