Acrylic Acid → Phenoxyethyl acrylate methyl methacrylate acrylic acid

Participants

Reaction Conditions

Reaction Steps

360.0 g of methyl ethyl ketone was placed in a 2 L three-necked flask equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen gas introduction tube, and the temperature of the methyl ethyl ketone was increased to 75° C. under nitrogen atmosphere. Thereafter, a mixed solution of 180.0 g of phenoxyethyl acrylate, 162.0 g of methyl methacrylate, 18.0 g of acrylic acid, 72 g of methyl ethyl ketone, and 1.44 g of an azo polymerization initiator V-601 (tradename, manufactured by Wako Pure Chemical Industries Co., Ltd.) was dripped into the flask at a constant rate while maintaining the temperature inside the flask at 75° C., such that the dripping was completed in 2 hours. After the completion of the dripping, a solution of 0.72 g of V-601 (tradename, manufactured by Wako Pure Chemical Industries Co., Ltd.) in 36.0 g of methyl ethyl ketone was added thereto, and the contents of the flask were stirred for 2 hours while maintaining the liquid temperature at 75° C. Thereafter, a solution of 0.72 g of V-601 (tradename, manufactured by Wako Pure Chemical Industries Co., Ltd.) in 36.0 g of isopropanol was added thereto, and the contents of the flask were stirred for 2 hours while maintaining the liquid temperature at 75° C. Then, the liquid temperature was increased to 85° C., and stirring was further continued for 2 hours, as a result of which a resin solution of a copolymer of phenoxyethyl acrylate/methyl methacrylate/acrylic acid (at a ratio by mass of 50/45/5) was obtained.

Provenance & Evidence