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    • 3. 发明授权
    • Method for producing modified polyphenylene oxides
    • 改性聚苯醚的制备方法
    • US4283511A
    • 1981-08-11
    • US135236
    • 1980-03-31
    • Katsuji UenoTakashi Maruyama
    • Katsuji UenoTakashi Maruyama
    • C08F283/00C08F2/16C08F283/06C08F283/08
    • C08F283/08Y10S525/905
    • A method for producing a modified polyphenylene oxide which comprises polymerizing 69 to 25 parts by weight of a mixture of 97 to 45% by weight of a styrene monomer and 3 to 55% by weight of a polar vinyl mononer at 90.degree. to 190.degree. C. using 0.3 to 10 parts by weight of a radical initiator in an aqueous dispersion containing a dispersion stabilizer alone or in combination with at least one of a surfactant and an adhesion-preventing agent in the presence of 31 to 75 parts by weight of a polyphenylene oxide having a unit structure of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen or halogen atom, or a hydrocarbon, substituted hydrocarbon, cyano, hydrocarbonoxy, substituted hydrocarbonoxy, nitro or amino group.
    • 一种改性聚苯醚的制造方法,其特征在于,在90〜190℃下聚合69〜25重量份的97〜45重量%的苯乙烯单体和3〜55重量%的极性乙烯基单体的混合物 在含有分散稳定剂的水性分散体中使用0.3〜10重量份的自由基引发剂,或与表面活性剂和防粘附剂中的至少一种在31〜75重量份的聚亚苯基 具有下式的单元结构的化合物,其中R 1,R 2,R 3和R 4各自为氢或卤素原子,或烃,取代的烃,氰基,烃氧基,取代的烃氧基,硝基或氨基。