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(A) 1H NMR and (B) FT-IR spectra of (a) mPEG113-(OH)2 and (b) mPEG113-b-P(LA12-co-GA9)2.
Abbreviations: 1H NMR, proton nuclear magnetic resonance; FT-IR, Fourier transform infrared; mPEG, monomethoxy poly(ethylene glycol); P(LA-co-GA), poly(L-lactide-co-glycolide).
