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Process for the synthesis of functionalized poly (1,3-alkadienes) and use thereof in the preparation of high impact vinyl aromatic polymers
Process for the synthesis of functionalized poly (1,3-alkadienes) and use thereof in the preparation of high impact vinyl aromatic polymers
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机译:官能化聚(1,3-链二烯)的合成方法及其在制备高抗冲乙烯基芳族聚合物中的用途
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摘要
Process for the preparation of vinyl aromatic (co) polymers grafted on an elastomer in a controlled manner, comprising: dissolving an elastomer functionalized with bromoalkanes and nitroxy radicals, soluble in non-polar solvents, in a liquid phase consisting of a mixture of vinyl aromatic monomer(s)/polymerization solvent; feeding at least one radical initiator to the mixture, containing the functionalized elastomer in solution, and polymerizing the mixture thus obtained at a temperature higher than or equal to 1200 C; recovering the vinyl aromatic (co) polymer obtained after devolatization; and recycling the solvent/monomer(s) mixture, coming from the devolatization, to step (a).
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