Effects of Prepolymerization, Temperature, and Hydrogen Concentration on Kinetics of Propylene Bulk Polymerization Using a Commercial Ziegler-Natta Catalyst

Figure 5

Polymerization kinetic curves at different temperatures and the same hydrogen concentration. Black lines: type A catalyst injection; red lines: type C catalyst injection; main polymerization temperature: (a) 50°C, (b) 60°C, (c) 70°C, and (d) 80°C.

(a)

(b)

(c)

(d)