反应详情

温度

55 °C

Isooctyl acrylate (54.9 Kg), N-vinyl-2-pyrrolidone (5.4 Kg), and ethyl acetate (93.6 Kg) were charged into a 75 gallon (285 liter) stainless steel reactor. The mixture was deoxygenated and heated to 55° C. After 5 minutes at 55° C., azobisisobutyronitrile (30 g) premixed in ethyl acetate (1 Kg) was charged to the reactor. Additional portions of azobisisobutyronitrile (30 g) premixed with ethyl acetate (1 Kg) were added 4 hours after the start of the reaction and again at 8 hours. The temperature was maintained at 55° C. throughout the reaction. The reaction was continued until complete. An antioxidant (61 g, IRGANOX™ 1010, Ciba-Geigy Corp.) and heptane (66.3 Kg) were added to the reactor and the contents mixed until homogeneous. The final copolymer had a measured inherent viscosity of 1.67 deciliter/g in ethyl acetate.

1. customThe mixture was deoxygenated
2. additionazobisisobutyronitrile (30 g) premixed in ethyl acetate (1 Kg)
3. additionwas charged to the reactor
4. additionAdditional portions of azobisisobutyronitrile (30 g) premixed with ethyl acetate (1 Kg)
5. additionwere added 4 hours
6. customafter the start of the reaction
7. waitagain at 8 hours
8. temperatureThe temperature was maintained at 55° C. throughout the reaction
9. additionthe contents mixed until homogeneous