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Science 6 December 2002:
Vol. 298. no. 5600, p. 1843
DOI: 10.1126/science.298.5600.1843c
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Sonochemistry takes advantage of the high temperatures that can be generated in solution by the collapse of cavitation bubbles. Kuijpers et al. (p. 1969) show that radicals formed by cavitation can be used to induced polymerization reactions of methyl methacrylate in high-pressure liquid CO2. High conversions result because the polymer is poorly solvated under these conditions and precipitates, thus maintaining a low-viscosity solution.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)