and the drug carrier capability of the formed mieelles were examined by fluorescence spectroscopy.transmission electron microscopy and UV spectroscopy.It was found that the hydrophabie inner core of the micelles formed by poly(γ-benzyl L-glutamate) (PBLG) segments can act as an incorporation site for hydrophobic drugs.The drug-loading content of the graft copolymer mieelles tends to be larger when the content of the PBLG segments in the copolymer increases.The results obtained from the drug-release studies showed that the drug-release rates were dependent on the chemical nature of the graft eopelymer.