Azobisisobutyronitrile → 4-Ethynylphenol

Participants

Reaction Steps

In 100 ml of dioxane were dissolved 176 g (1.0 mole) of p-t-butoxystyrene, 4.0 g (0.02 mole) of dodecylmercaptan and 8.2 g (0.05 mole) of azobisisobutyronitrile, and the resulting solution was subjected to reaction for 10 hours while the internal temperature was kept at 75° 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 8,900. This resin is referred to hereinafter as Resin A2.

Provenance & Evidence