申请人:RAYCHEM CORPORATION (a Delaware corporation)
公开号:EP0124276A2
公开(公告)日:1984-11-07
A process for producing an aromatic polyketone which comprises polymerizing an appropriate monomer or nomomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base may be added to the reaction medium and/or the reaction is conducted under specified conditions to control the reaction. The reaction medium comprises, for example, aluminum trichloride as the Lewis acid, an organic Lewis base such as N,N-dimethylformamide or an inorganic Lewis base such as sodium or lithium chloride, and a diluent such as methylene chloride or dichloroethane. The amount of Lewis acid, the amount of Lewis base, the temperature of the reaction and the monomer to diluent molar ratio are varied depending on the monomer system to obtain melt-processable, high molecular weight, substantially linear polymers, for example poly(carbonyl-p-phenylene-oxy-p-phenylene), poly(carbonyl-p-phenylene-oxy--p-phenylene-oxy-p-phenylene), and the like. Copolymers containing up to 30% by weight of an aromatic sulfonyl halide comonomer can also advantageously be produced by this process.
一种生产芳香族聚酮的工艺,包括使用路易斯酸催化剂,通过弗里德尔-卡 夫斯聚合反应使一种或多种适当的单体聚合。可在反应介质中加入路易斯碱等控制剂和/或在特定条件下进行反应,以控制反应。例如,反应介质包括作为路易斯酸的三氯化铝、有机路易斯碱(如 N,N-二甲基甲酰胺)或无机路易斯碱(如氯化钠或氯化锂)以及稀释剂(如二氯甲烷或二氯乙烷)。路易斯酸的用量、路易斯碱的用量、反应温度以及单体与稀释剂的摩尔比根据单体体系的不同而变化,以获得可熔融加工的、高分子量的、基本上是线性的聚合物,例如聚(羰基-对苯氧基-对苯烯)、聚(羰基-对苯氧基--对苯氧基-对苯烯)等。通过这种工艺还可以生产出芳香磺酰卤共聚单体含量高达 30% (重量百分比)的共聚物。