1,4-Dioxane → HCID 86755012, compound

Participants

Reaction Conditions

Reaction Steps

A 1-liter flask was charged with 72.1 g (0.60 mol) of 4-hydroxystyrene, 49.2 g (0.60 mol) of 2-methyl-2-butenyl methacrylate, 1.5 g (0.009 mol) of azobisisobutyronitrile and 300 ml of dioxane, and the mixture was stirred for 20 hours at 20° C. in a nitrogen gas stream. The resultant reaction mixture was poured into 5 liters of xylene, and precipitate formed was collected by filtration. The resultant solids were dissolved in 300 ml of acetone, and the solution was poured into 4 liters of n-hexane to collect precipitate formed by filtration (reprecipitation process). This reprecipitation process was repeated 3 times, and the resultant precipitate was then dried to obtain 103.5 g of a 4-hydroxystyrene/3-methyl-2-butenyl methacrylate copolymer. The GPC analysis of the copolymer thus obtained revealed that its Mw was 8,800. Besides, the 1H-NMR spectrum analysis of the polymer revealed that the copolymerization ratio of 4-hydroxystyrene to 3-methyl-2-butenyl methacrylate was 53/47.

Provenance & Evidence