| 摘要 |
A process for the preparation of vinylaromatic (co)polymers grafted on an elastomer in a controlled way, comprising the dissolving of an elastomer, such as polybutadiene, in a mixture consisting of a monomer and of a solvent in the presence of a polymerization catalytic system, which comprises an initiator of free radicals and a stable initiator of free radicals. The mixture obtained in this way is heated to a temperature of about 100° C. to functionalize the rubber, then more monomer is added and the temperature is raised to start the polymerization reaction.
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