Abstract
In this paper we describe the effect of 20 kHz power ultrasound on the encapsulation of titanium dioxide pigment with poly (methyl methacrylate) in an otherwise conventional emulsion-polymerisation process. In all instances, sonication of the reaction during the mixing period led to an improvement in the extent and uniformity of the coverage of the pigment. Low-power ultrasound produced a more uniform coverage than high-power ultrasound, but the latter provided greater particle dispersion.
| Original language | English |
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| Pages (from-to) | 392-397 |
| Number of pages | 6 |
| Journal | Colloid and Polymer Science |
| DOIs | |
| Publication status | Published - Apr 1991 |