Acrylic Acid → Phenoxyethyl acrylate methyl methacrylate acrylic acid

Participants

Reaction Conditions

Reaction Steps

360.0 g of methyl ethyl ketone was introduced in a 2 L three-necked flask equipped with a stirrer, a thermometer, a reflux cooling tube, and a nitrogen gas supply tube and was then heated to 75° C. Then, 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 “V-601” (trade name, manufactured by Wako Pure Chemical Industries, Ltd.) was added dropwise thereto at a constant speed such that the addition was completed in 2 hours, while the temperature of the flask was maintained at 75° C. After the addition was completed, a solution of 0.72 g of “V-601” and 36.0 g of methyl ethyl ketone was added thereto, followed by stirring at 75° C. for 2 hours. Further, a solution of 0.72 g of “V-601” and 36.0 g of isopropanol was added thereto, followed by stirring at 75° C. for 2 hours. Then, the resultant solution was heated to 85° C., and stirred for 2 hours, to obtain a resin solution of a phenoxyethyl acrylate/methyl methacrylate/acrylic acid (=50/45/5[ mass ratio]) copolymer.

Provenance & Evidence