bromize

The amount of bromine is about 60～70 percent in bromized polystyrene.

阻燃的含量达60—70%。

In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.

本文利用三氯铝作催,聚苯烯与发生亲电取代反应合成聚苯烯阻燃。

p-Ethyl-phenylacetylene was synthesized from starting materials ethylbenzene via five steps by acylation、reduction、dehydration、bromize、eliminition reaction.And the conditions were optimized.

以苯作为原料,通过酰、还原、脱水、消除五步反应合成了基苯炔,并对反应条件进行了优。