Flame retardant alkenyl aromatic compounds which are vinylbenzyl diaryl phosphine oxides and a method for their preparation are described. They may be polymerized into higher molecular weight flame retardant materials which, in turn, may be admixed with polyphenylene ether resins to form thermoplastic flame resistant molding compositions. The present materials are more resistant to losses in the flame retardancy upon thermal processing, e.g., molding, because the active flame retardant agent, phosphorus is chemically bound to the polymeric matrix.
本文介绍了作为
乙烯基苄基二芳基膦氧化物的阻燃烯基芳香族化合物及其制备方法。它们可以聚合成更高分子量的阻燃材料,然后与聚苯醚
树脂混合,形成热塑性阻燃成型组合物。由于活性阻燃剂
磷与聚合物基体发生
化学结合,因此本材料在热加工(如成型)过程中的阻燃性能更强。