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. 2016 Nov 25;11:6307–6324. doi: 10.2147/IJN.S119520

Figure 2.

Figure 2

1H-NMR spectrum of the TC–PECL polymer.

Notes: (A) Molecular structure diagram of the TC–PECL polymer. (B) 1H-NMR spectrum of the TC–PECL polymer marked with the hydrogen atoms of the benzene ring of TC. (C) 1H-NMR spectrum of the TC–PECL polymer marked with the hydrogen atoms of the PEG copolymers. (D) 1H-NMR spectrum of the TC–PECL polymer marked with the hydrogen atoms of the PCL copolymers.

Abbreviations: 1H-NMR, proton nuclear magnetic resonance; PCL, poly(ε-caprolactone); PECL, PEG–PCL; PEG, poly(ethylene glycol); TC, tetracycline.