| abstract |
The invention relates to a process control method for anionic polymerization of butadiene. The method allows to increase the accuracy of the polymer viscosity control (to reduce the variation in the polymer dynamic viscosity from 6-14 to 7-9 P). The process is controlled as follows: first, the viscosity and temperature of the polymer are measured at the outlet of each polymerizer, the viscosity of the polymer is calculated from the data obtained, compared with the specified value, and the feed rate of the monomer is changed and /; according o. dependence 29.32- -23.86- rROK / rLiBu 0.37t + 0.795V ,,, where P is the specified dynamic viscosity of the polymer at 20 ° C, P; KOK / / fbiBuJ is the molar ratio of potassium alkoxides and lithium butyl in the catalytic complex: t is the polymerization temperature,. WITH; Vj, is the given feed rate of butadiene to the polymerizer. 1 il. 1 tab. (L |