Günay, Ufuk SaimDurmaz, HakanGungor, EdaDag, AydanHızal, GürkanTunca, Ümit2020-10-292020-10-292012-02-15Günay U. S. , Durmaz H., Gungor E., Dag A., Hızal G., Tunca Ü., -3-miktoarm star terpolymers using triple click reactions: Diels-Alder, copper-catalyzed azide-alkyne cycloaddition, and nitroxide radical coupling reactions-, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.50, ss.729-735, 2012http://hdl.handle.net/20.500.12645/27030Well-defined linear furan-protected maleimide-terminated poly(ethylene glycol) (PEG-MI), tetramethylpiperidine-1-oxyl-terminated poly(epsilon-caprolactone) (PCL-TEMPO), and azide-terminated polystyrene (PS-N-3) or -poly(N-butyl oxanorbornene imide) (PONB-N-3) were ligated to an orthogonally functionalized core (1) in a two-step reaction mode through triple click reactions. In a first step, DielsAlder click reaction of PEG-MI with 1 was performed in toluene at 110 degrees C for 24 h to afford alpha-alkyne-alpha-bromide-terminated PEG (PEG-alkyne/Br). As a second step, this precursor was subsequently ligated with the PCL-TEMPO and PS-N-3 or PONB-N-3 in N,N-dimethylformamide at room temperature for 12 h catalyzed by Cu(0)/Cu(I) through copper-catalyzed azide-alkyne cycloaddition and nitroxide radical coupling click reactions, yield resulting ABC miktoarm star polymers in a one-pot mode. (c) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 50: 729-735, 2012ArticleWOS:0002988381000138485544192610.1002/pola.25828