polystyrene

polystyrene packing.

乙包装材料。

loose polystyrene fill.

疏松的乙填料。

Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin.

本文研究从荆芥穗中提取回收乙所需的柠檬,其方法是溶剂萃取。

Results indicate interestingly that the double bond of GMA polymerized with polystyryl carbanion and the molar ratio of epoxy end group and polystyrene oligomer can be adjusted.

结果表明：在GMA与乙阴离子反应的过程中，GMA在活性种的终端生了合，所得产物中环氧端基与合产物的摩尔比可根据需要进行调节。

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

本文利用三氯化铝作催化剂,废乙与溴生亲电取代反应合成溴化乙阻燃剂。

The reaction between polystyrene having oxazoline groups(RPS) and chlorinated polyethylene(CPE) was investigated by FTIR, DSC methods.

用FTIR、DSC等方法研究了含恶唑啉官能团的乙(RPS)与氯化乙(CPE)之间的反应。