Figure 8.

Fluorescence microscopy images obtained for emulsions prepared by the high-shear homogenization of 0.25% w/w aqueous PGMA₄₈-P(HPMA₉₀-stat-GlyMA₁₅) copolymer dispersions with 50 vol % n-dodecane at 13 500 rpm for 2 min before and after the addition of either 0.1 or 3.0% w/w non-ionic surfactant (Tween 80). (a) Pickering emulsion stabilized using short PGMA₄₈-P(HPMA₉₀-stat-GlyMA₁₅) cross-linked worms. (b) Pickering emulsion stabilized using long PGMA₄₈-P(HPMA₉₀-stat-GlyMA₁₅) cross-linked worms. (c) Surfactant-stabilized emulsion obtained after the addition of 0.1% w/w Tween 80, which displaces the short worms initially adsorbed at the oil/water interface. (d) Pickering emulsion obtained after the addition of 0.1% w/w Tween 80, which cannot displace the long worms initially adsorbed at the oil/water interface. (e) Surfactant-stabilized emulsion obtained after the addition of 3.0% w/w Tween 80, which displaces the short worms adsorbed at the oil/water interface. (f) Mixed emulsion obtained after the addition of 3.0% w/w Tween 80, which partially displaces the long worms adsorbed at the oil/water interface. Reproduced from ref (194) (copyright 2018 American Chemical Society).