| abstract |
A process for the continuous synthesis of diene elastomers with a high degree of conversion, including simultaneously:n h) introducing continuously into a polymerisation reactor containing a gas phase and equipped with at least one stirring rotor and a discharge device, at leastn 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 n 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;n 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. |