Styrene → Benzene, ethenyl-, polymer with 1,3-butadiene

Participants

Reaction Steps

In a 1 liter stainless steel autoclave, in which the temperature is elevated up to 45° C, there are charged a toluene solution of triethylaluminum (3 ml; 3 mmol) and a toluene solution of hexachloroacetone (1.8 ml; 1.8 mmol) while stirring, and anhydrous toluene (400 ml), butadiene (42 g), styrene (56 g), propylene (32 g) and a toluene solution of nickel octylate (1.5 ml; 0.3 mmol) are added thereto. The mixture is reacted at 45° C for 5 hours to execute the polymerization. The stop of the polymerization and the treatment of the reaction mixture are executed as in Example 7 to give liquid butadiene-styrene copolymer (40.8 g) having a viscosity of 102 cp (determined at 30° C by a viscosimeter of E type). The content of styrene in the copolymer is 20.5 % by weight.

Provenance & Evidence