| abstract |
A novel continuous polymerization apparatus capable of producing polymer compositions having different qualities is provided. In a continuous polymerization apparatus, at least first and second reaction apparatuses (10, 20) are used. Each reaction device (10, 20) has a supply port (11a, 21a) and an extraction port (11b, 21b), and the supply port (11a) of the first reaction device (10) includes a raw material monomer and The polymerization initiator is connected to the supply sources (1, 3), and the outlet (11b) is connected to the supply port (21a) of the second reactor (20) by a connection line (15a). The connection line (15a) joins at the junction through the replenishment line (15b) and the injection valve (50). The injection valve (50) has a gap that allows a fluid containing at least the raw material monomer to flow from the replenishment line (15b) to the connection line (15a) in the fully closed state. [Selection] Figure 1 |