Figure 1.
Synthesis pathway of Y-shaped mPEG-P(LA-co-GA)2 copolymers.
Abbreviations: DMAP, 4-dimethylaminopyridine; Sn(Oct)2, stannous octoate; mPEG, monomethoxy poly(ethylene glycol); P(LA-co-GA), poly(L-lactide-co-glycolide).
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