Abstract
The Ostwald ripening behavior of the two-component miniemulsions of MMA/SMA, ST/SMA, MMA/LMA, and ST/LMA was investigated. Kabal'nov equation predicted the Ostwald ripening rate data reasonably well when the volume fraction of reactive costabilizer was lower than 0.02–0.03, but it failed to describe the experimental data over the whole costabilizer volume fraction range (0.01–0.05). An empirical equation with two adjustable parameters K1 and K2 was then proposed to adequately predict the Ostwald ripening rate data. The greater the value of K1 (or K2), the more effective is the costabilizer in stabilizing miniemulsion droplets against the diffusional degradation process.
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