Fig. 4. TEM image of CP(-PVDF)₂ prepared from a 1 mg mL⁻¹ DMF solution by adding THF (addition rate was 4 mL h⁻¹). Final concentration (a and b) 0.1 mg mL⁻¹ and (c and d) 0.01 mg mL⁻¹ (DMF 10 and 1% v/v respectively in the final solutions). Sample prepared in Formvar/carbon coated copper TEM grid (a and b). Sample prepared in Lacey/carbon coated copper TEM grid (c and d) scales bars are 200 nm (a, b, and c) and 50 nm (d).