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    • 9. 发明授权
    • Poly(arylene ether)-polysiloxane composition and method
    • 聚(亚芳基醚) - 聚硅氧烷组合物和方法
    • US08669332B2
    • 2014-03-11
    • US13169137
    • 2011-06-27
    • Alvaro CarrilloHua Guo
    • Alvaro CarrilloHua Guo
    • C08L71/12C08G77/46
    • C08G77/46C08G77/16C08G77/80C08G81/00C08G2261/126C08L71/12C08L83/12C08L2205/05C08L83/04
    • A thermoplastic composition that includes a poly(arylene ether)-polysiloxane block copolymer is prepared by a method that includes oxidatively copolymerizing a monohydric phenol and a hydroxyaryl-terminated polysiloxane. The oxidative polymerization includes a monohydric phenol addition period characterized by a first temperature, a build period following the addition period and characterized by a second temperature greater than the first temperature, and a temperature ramp period between the addition period and the build period. During the temperature ramp period, the temperature is increased at an average rate of about 0.01 to about 0.35° C. per minute, which improves the efficiency with which the hydroxyaryl-terminated polysiloxane is incorporated into the poly(arylene ether)-polysiloxane block copolymer.
    • 包括聚(亚芳基醚) - 聚硅氧烷嵌段共聚物的热塑性组合物通过包括使一元酚和羟基芳基封端的聚硅氧烷氧化共聚的方法制备。 氧化聚合包括一元酚添加时间,其特征在于第一温度,加入时间之后的生成周期,并且特征在于大于第一温度的第二温度,以及添加周期和构建周期之间的温度斜坡期间。 在温度升高期间,温度以每分钟约0.01至约0.35℃的平均速率增加,这提高了聚(亚芳基醚) - 聚硅氧烷嵌段共聚物中加入羟基芳基封端的聚硅氧烷的效率 。