Methacrylic Acid → Benzyl methacrylate methacrylic acid 2-hydroxyethyl methacrylate

Participants

Reaction Conditions

Reaction Steps

Specifically, 53.0 g (0.300 mol) of benzyl methacrylate, 11.7 g (0.090 mol) of 2-hydroxyethyl methacrylate, 7.92 g (0.110 mol) of methacrylic acid, and 50 g of propylene glycol monomethylether acetate were placed in a 300 ml four-necked flask and stirred at 80° C. under a nitrogen atmosphere. A solution of 0.3118 g (1.91×10−3 mol) of a thermal polymerization initiator (2,2′-azobisisobutylnitrile, AIBN) dissolved in 10 g of propylene glycol monomethylether acetate was added thereto, and stirred for 6 hours. Then, the supply of nitrogen was stopped, and a solution prepared by dissolving 0.22 g (1.5×10−3 mol) of p-methoxyphenol in 15 g of propylene glycol monomethylether acetate was added thereto, and the temperature was elevated to 95° C. and stirred for 2 hours, thereby obtaining the resin (benzyl methacrylate/methacrylic acid/2-hydroxyethyl methacrylate copolymer). The resulting resin had an acid value of 30 mgKOH/g and a weight average molecular weight of 15,000.

Provenance & Evidence