Azobisisobutyronitrile → HCID 86755013, compound

Participants

Reaction Conditions

Reaction Steps

A 500-ml flask was charged with 72.1 g (0.60 mol) of 4-hydroxystyrene, 17.0 g (0.12 mol) of n-butyl methacrylate, 1.5 g (0.009 mol) of azobisisobutyronitrile and 150 ml of dioxane, and the mixture was stirred for 20 hours at 80° 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 200 ml of diethyl ether, and the solution was poured into 3 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 23.6 g of a 4-hydroxystyrene/n-butyl methacrylate copolymer. The GPC analysis of the polymer thus obtained revealed that its Mw was 5,600. Besides, the 1H-NMR spectrum analysis of the polymer revealed that the copolymerization ratio of 4-hydroxystyrene to n-butyl methacrylate was 68/32.

Provenance & Evidence