| 摘要 |
<p>The present invention relates to a process for preparing hydroperoxidized elastomers comprising : a) mixing hydrogen peroxide and an hypochlorite solution to generate singlet oxygen, b) contacting said singlet oxygen with at least an elastomer in a solvent at conditions effective to hydroperoxidize said elastomer. In a preferred embodiment steps a) and b) are incorporated in a process for preparing a high impact monovinylaromatic polymer. In other words said preferred embodiment is a process for preparing a high impact monovinylaromatic polymer comprising : a00) forming a polymerizable mixture comprising at least one monovinylaromatic monomer and optionally one or more comonomers, a0) dissolving at least an elastomer in said polymerizable mixture to form an elastomer containing polymerizable solution, a) mixing hydrogen peroxide and an hypochlorite solution to generate singlet oxygen, b) contacting said singlet oxygen with the polymerizable solution at conditions effective to hydroperoxidize said elastomer, c) polymerizing the solution obtained at step b) optionally in the presence of a free radical initiator, optionally in the presence of chain transfer agents.</p> |
