Nanospheres Prepared by Self-Assembly of Random Copolymers in Supercritical Carbon Dioxide

Figure 4

¹H NMR spectra of P(POA-r-AA) with a 7/3 POA/AA ratio in the presence (a) and absence (b) of CF₃COOH. Solvent: C₆F₆ including C₆D₆.