Azobisisobutyronitrile → 4-Ethynylphenol

Participants

Reaction Steps

In 100 ml of dioxane were dissolved 176 g (1.0 mole) of p-t-butoxystyrene and 8.2 g (0.05 mole) of azobisisobutyronitrile, and the resulting solution was subjected to reaction for 24 hours while the internal temperature was kept at 70° C., after which the reaction mixture was subjected to several reprecipitation treatments to remove the unreacted monomer, thereby obtaining poly(p-t-butoxystyrene). Subsequently, this poly(p-t-butoxystyrene) was hydrolyzed with an acid to obtain poly(p-hydroxystyrene) having a Mw of 30,000. This resin is referred to hereafter as Resin A1.

Provenance & Evidence