Degradable hyperbranched polymers with multiple alkyl halide chain ends were synthesized by the atom transfer radical polymerization of inimers containing ester (2-(2′-bromopropionyloxy)ethyl acrylate) or disulfide (2-(2′-bromoisobutyryloxy)ethyl 2′′-methacryloyloxyethyl disulfide) groups. Both the homo- and copolymerizations (with styrene in the former case and methyl methacrylate in the latter) were studied. The hyperbranched polymers derived from the ester-type inimer were hydrolytically degradable under basic conditions, whereas those derived from the disulfide-containing inimer could be efficiently degraded in the presence of reducing agents such as tributylphosphine. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2009
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