نتایج جستجو برای: ziegler natta catalyst
تعداد نتایج: 45447 فیلتر نتایج به سال:
Muhammad Adnan Akram, Xiaoyu Liu, Baiyu Jiang, Biao Zhang, Amjad Ali, Zhisheng Fu & Zhiqiang Fan*MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department Polymer Science Engineering, Zhejiang University, Hangzhou, China
the data on the effect of ethylene concentration on polymerization rate for several modifications of modern highly active titanium–magnesium catalysts ticl4/mgcl2 are presented. these catalysts differ in titanium content and conditions of support preparation, activities, and the shape of kinetic curves. it is found that the observed order of polymerization rate with respect to ethylene in the r...
50 years ago, Karl Ziegler and Giulio Natta were awarded the Nobel Prize for their discovery of the catalytic polymerization of ethylene and propylene using titanium compounds and aluminum-alkyls as co-catalysts. Polyolefins have grown to become one of the biggest of all produced polymers. New metallocene/methylaluminoxane (MAO) catalysts open the possibility to synthesize polymers with highly ...
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