brominating

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

除了十溴联苯醚以外无豁免，十溴联苯醚正在重新评估之中。

2.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，再氨的二步合成法，合成了胺基单取代聚乙二醇衍物。