Isobutyl Methacrylate → HCID 86751387, compound

Participants

Reaction Steps

Into a 1 l four-necked flask, 10.0 g of hydroxyethyl methacrylate, 40.0 g of isobutyl methacrylate, 10.0 g of 2,2'-azobisisobutylnitrile (AIBN), 5.0 g of n-dodecylmercaptan and 500 ml of dioxane were charged, dissolved and stirred. Then, stirring was continued under a nitrogen stream at 70° C. for 6 hours. The reaction solution was put into n-hexane to precipitate the resin. Purification was repeated with tetrahydrofuran/n-hexane, and then vacuum drying was conducted at 40° C. to obtain a resin powder. The obtained amount was 40.0 g. The weight average molecular weight as measured by GPC was 16,000 as calculated as polystyrene; the glass transition temperature (Tg) was 59° C.; and the acid value calculated after titration by means of a potentiometer was 110. 25 g of a hydroxyethyl methacrylate/isobutyl methacrylate copolymer thus obtained, 4.4 g of a melamine-type heat-curing agent (CYMEL (trademark) 303, manufactured by Mitsui Cyanamid) and 83 g of ethyl lactate were mixed and dissolved, followed by filtration with a 0.2 μm filter to obtain a planarizing material solution.

Provenance & Evidence