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1H NMR assignment of precursor and M-P polymers: (1)
1H NMR spectra of precursor polymer
mPEG5k-b-P(DPA45-r-PDSM6);
(2) 1H NMR spectra of β-lap conjugated polymer
mPEG5k-b-P(DPA45-r-PDSM(IV)6),
the insets only showed the prodrug segment.