Synthesis of functionalized polymers by desulfurization from waste containing elastomers

摘要

The present invention relates to a method for synthesizing a polymer by desulfurization from waste containing an elastomer, wherein the method is a) contacting the waste containing the elastomer with a solvent in the presence of a desulfurizing agent, and b) step. The step of heating the mixture produced in a) at a temperature of 20 ° C. to 250 ° C. for 15 minutes to 24 hours in the presence of a desulfurizing agent is included, and the concentration of the desulfurizing agent is based on the elastomer weight of 100. Is the ratio of the desulfurizing agent concentration, expressed in parts by weight (phr), to the solvent volume, expressed in ml-greater than 0.3 phr / ml relative to the solvent if the method is performed in air? Or less than 0.2 phr / ml relative to the solvent-greater than 0.06 phr / ml relative to the solvent if the method is carried out in an inert atmosphere.