Compositional ripening of particle- and surfactant-stabilised emulsions: a comparison
Binks, BP; Fletcher, PD; Holt, BL; Kuc, O; Beaussoubre, P; Wong, K
| HERO ID | 4969190 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | Compositional ripening of particle- and surfactant-stabilised emulsions: a comparison |
| Authors | Binks, BP; Fletcher, PD; Holt, BL; Kuc, O; Beaussoubre, P; Wong, K |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 12 |
| Issue | 9 |
| Page Numbers | 2219-2226 |
| Abstract | When beta-ionone-in-water emulsions are mixed with squalane-in-water emulsions, the slightly water-soluble, mobile beta-ionone undergoes mass transfer to the drops of highly water-insoluble, immobile oil squalane. We have investigated this compositional ripening process for emulsions stabilised either by particles or by surfactant molecules. For particle-stabilised emulsions, the swelling of the squalane-containing drops triggers droplet coalescence which causes the final swollen droplet radius to be proportional to the swelling ratio to the power of 1. Surfactant-stabilised emulsions swell without coalescence which causes the final droplet radius to be proportional to the swelling ratio to the power 1/3. Addition of excess, non-adsorbed particles to the particle-stabilised emulsions suppresses the swelling-triggered coalescence and causes a switchover from particle to surfactant behaviour. |
| Doi | 10.1039/b918812f |
| Pmid | 20165771 |
| Wosid | WOS:000274622900021 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |