| 摘要 |
A process for the continuous synthesis of diene elastomers with a high degree of conversion, including simultaneously: h) introducing continuously into a polymerisation reactor containing a gas phase and equipped with at least one stirring rotor and a discharge device, at least iii. one or more monomers, including at least one conjugated diene monomer, and iv. from 0% to 70% by mass of an organic solvent, calculated relative to the total mass of monomers and of solvent i) continuously polymerising the monomer(s), j) stirring the polymerisation medium via the continuous movement of at least one stirring rotor about a rotary axle, k) continuously discharging the elastomer paste, l) continuously conveying the discharged elastomer paste to a chopping device and chopping it into particles, and m) removing solvent from the particles of the elastomer paste and n) recovering diene elastomer; wherein 1 the degree of conversion is at least 60%, at the limit of the first third of the reaction volume of the polymerisation reactor, and 2 the standard deviation of the residence time distribution function in the polymerisation reactor is greater than the mean residence time divided by 2√3. |
