Table 2.
Properties of the Pickering emulsions of n-hexadecane stabilized by PMDA-ODA particles with different concentrations (oil-water volume ratio = 1:6).
| Particle Concentration (wt %) | pH of Dispersion | Conductivity of Dispersion (μS cm−1) | Conductivity of Emulsion (μS cm−1) | Type of Emulsion Formed a | Emulsion Remaining for 48 h b (%) | Mean Droplet Diameter c (μm) |
|---|---|---|---|---|---|---|
| 0.1 | 4.88 | 60 | 44 | Oil-in-water | ~100 | ~118 |
| 0.2 | 4.47 | 111 | 98 | Oil-in-water | ~100 | ~45 |
| 0.5 | 4.10 | 243 | 201 | Oil-in-water | ~100 | ~19 |
| 1.0 | 4.02 | 287 | 239 | Oil-in-water | ~100 | ~11 |
a Determined by emulsion conductivity measurements and drop tests. b Calculated using Equation (2). c Measured using an optical microscope from a data set of at least 1000 measurements for each sample.