The copolymer of propylene with a small amount of butene was prepared by heterogeneous Ziegler ? Natta catalyst.

用负载型Ziegler- Nata 催化剂合成了丙烯同少量丁烯的共聚物,考察了单体进料比对催化活性的影响,发现此体系存在“共单体效应”.

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The catalyst systems used in Fushun PE process is based on Ziegler Natta co - ordination type catalysts.

抚顺石化公司乙烯化工厂聚乙烯装置所用的催化剂是由钛和钒为基础的齐格勒钛 - 钒催化剂.

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The synthesis of isotactic polymers is usually only possible by means of special sterospecific ( stereoregulating ) initiators.

通常只能用特殊的立体定向(立体调发)引发剂 ( Ziegler催化剂 ) 来合成等规聚合物.

辞典例句