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In a 250 mL flask sealed by a septum,140 mL water (and 1-5 mg of a fluorescent dye, if appropriate)were stirred for 45 min under a moderate flow of nitrogen.After the addition of 15 mL of methyl methacrylate and 15mL of toluene, the nitrogen flow was stopped, and thesuspension was tempered for 60 min at 90 ¡ãC. A solution of500 mg of potassium peroxodisulfate in 5 mL of water(tempered for 15 min under nitrogen) was added as initiator.
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