brominated

In this paper,W amino polyoxyalkylene were synthesized by two steps.In the first step,polyoxyalkylene were brominated.In the second,the brominated polyoxyalkylene were aminated.

本文用聚乙二醇先溴代，再氨化的二步合成法，合成了胺基单取代聚乙二醇衍生物。

There are currently no exemptions for these brominates flame retardants except Deca-BDE. And Deca-BDE is under consideration by European Commission.

除了溴以免，溴正在重新评估之中。

It presented the synthetic methods as well as experiment results of brominated or chlorinated propyl antimonites and its intermediate propenyl anti-monite.

介绍了溴（氯）代丙基亚锑酸酯及其中间体烯丙基亚锑酸酯的合成方法及应用试验结果。