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. 2018 May 15;13:2839–2856. doi: 10.2147/IJN.S160651

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© 2018 Liu et al. This work is published and licensed by Dove Medical Press Limited

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¹H NMR spectra of (A) ethyl methacrylate, (B) PEMA-Br polymer, (C) PEMA-b-PDMAEMA diblock copolymer, (D) PEMA-b-PTBMA diblock copolymer, (E) PEMA-b-PHEA diblock copolymer, and (F) PEMA-b-PHEMA diblock copolymer. CDCl₃ was used as the solvent in all images except (E) and (F) which were dissolved in DMSO-d₆.

Abbreviations: ¹H NMR, ¹H nuclear magnetic resonance; PEMA, poly ethyl methacrylate; PDMAEMA, poly (2-[dimethylamino] ethyl methacrylate); PTBMA, poly (tertiary-butyl methacrylate); PHEA, poly (2-hydroxyethyl acrylate); PHEMA, poly (2-hydroxyethyl methacrylate); DMSO, dimethyl sulfoxide.