Abstract
Reverse atom transfer radical polymerization (RATRP) of styrene (S) was carried out in bulk using polyazoester prepared by the reaction of polyethylene glycol with molecular weight of 3000 and 4,4′-azobis(4-cyanopentanoyl chloride) as initiator and CuCl2/2,2′-bipyridine (bpy) catalyst system to yield poly(ethylene glycol-b-styrene) block copolymer. The block copolymers were characterized 1H NMR, FT-IR spectroscopy and GPC. The 1H NMR, and FT-IR spectra showed that formation of poly(ethylene glycol-b-styrene) block copolymer. The polydispersities of block copolymers were observed between from 1.49 and 1.98 GPC measurements.
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Ozturk, T., Cakmak, I. Synthesis of poly(ethylene glycol-b-styrene) block copolymers by reverse atom transfer radical polymerization. J Polym Res 15, 241–247 (2008). https://doi.org/10.1007/s10965-007-9164-0
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DOI: https://doi.org/10.1007/s10965-007-9164-0