| 摘要 |
The invention relates to a method of preparing a mixture of polyphenylene ether and polystyrene having a content of polyphenylene ether of at least 20% by weight by radical polymerisation of a vinylaromatic com- pound in the presence of polyphenylene ether, which method is characterised in that the polymerisation is carried out in a dispersion of an organic phase in an aqueous phase, in the presence of an emulsifier, in that the polymerisation is initiated partly from the aqueous phase and partly from the organic phase, and in that, after completion of the poymerisation, the product obtained by the initiation from the aqueous phase is separated at least partly from the product obtained by initiation from the organic phase.
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