The Catalytic Action of Organic Peroxides on the Polymerization of Ethenoid Compounds. III. The Effects of α-and β-Naphthoyl Peroxide on the Polymerization of Styrene

Abstract

Abstract (1) The rates of polymerization of styrene with α-and β-naphthoyl peroxide have been found to be in a parallel relation with the rates of decomposition of the peroxides at 35° and 60°C. (2) Aromatic amines such as dimethyl aniline and ethyl-benzyl aniline, and urotropine accelerate the decomposition of the peroxides. (3) In the experiments using α-peroxide, the presence of the aromatic amines and urotropine show a retarding influence on the rate of the polymerization. In the experiments using β-peroxide, on the contrary, dimethyl aniline and ethyl-benzyl aniline influence the peroxide to accelerate the polymerization. (4) Heterocyclic amines such as pyridine and quinoline manifest practically no influence either on the rate of decomposition of the peroxides or on that of the peroxide catalyzed polymerization of styrene. (5) In respect to the action of amines, a tentative theory has been made.