Effect of Hydrogen on the Ethylene Polymerization Process over Ziegler-Natta Catalysts Supported on MgCl_2(THF)_2. II. Kinetic Studies

KRYSTYNA CZAJA; MARZENA BIALEK

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Effect of Hydrogen on the Ethylene Polymerization Process over Ziegler-Natta Catalysts Supported on MgCl_2(THF)_2. II. Kinetic Studies

机译：氢对MgCl_2（THF）_2负载齐格勒-纳塔催化剂的乙烯聚合过程的影响。二。动力学研究

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This article reports on a study of the effects of hydrogen on the activity of vanadium and titanium catalysts supported on MgCl_2(THF)_2 in ethylene polymerization. It was found that hydrogen did not change the stable nature of the active sites and the polydispersity index of the polyethylene obtained. The propagation rate, expressed as k_p, was found to be independent of the presence and concentration of hydrogen, indicating that this reacting agent does not modify the reactivity of the active sites. However, the presence of hdyrogen in the polymerization medium is responsible for partial deactivation of the active sites just before polymerization is initiated.

机译：本文报道了氢对乙烯聚合反应中MgCl_2（THF）_2负载的钒和钛催化剂活性的影响的研究。发现氢不会改变活性位点的稳定性和所得聚乙烯的多分散指数。发现以k_p表示的传播速率与氢的存在和浓度无关，表明该反应剂不会改变活性位点的反应性。然而，在聚合反应开始之前，聚合介质中存在高热原导致活性位点部分失活。

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《Journal of Applied Polymer Science》 |2001年第2期|共5页
作者
KRYSTYNA CZAJA; MARZENA BIALEK;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
关键词
ethylene polymerization; vanadium and titanium catalysts; hdyrogen; catalyst activity; polymerization kinetic;

机译：乙烯聚合;钒钛催化剂;氢;催化剂活性;聚合动力学;

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1. Effect of Hydrogen on the Ethylene Polymerization Process over Ziegler-Natta Catalysts Supported on MgCl_2(THF)_2. II. Kinetic Studies [J] . KRYSTYNA CZAJA, MARZENA BIALEK Journal of Applied Polymer Science . 2001,第2期

机译：氢对MgCl_2（THF）_2负载齐格勒-纳塔催化剂的乙烯聚合过程的影响。二。动力学研究
2. Studies on ethylene/1-hexene copolymerization over the zirconocene catalyst supported on MAO-modified MgCl_2(THF)_2. The effect of copolymerization conditions on catalyst activity and copolymer properties [J] . Marzena Bialek, Alicja Utrata, Krystyna Czaja Polimery . 2002,第1期

机译：MAO改性的MgCl_2（THF）_2负载的锆茂催化剂上乙烯/ 1-己烯共聚反应的研究。共聚条件对催化剂活性和共聚物性能的影响
3. Microstructure of ethylene-1-hexene and ethylene-1-octene copolymers obtained over Ziegler-Natta catalysts supported on MgCl_2(THF)_2 [J] . M.Bialek, K.Czaja Polymer: The International Journal for the Science and Technology of Polymers . 2001,第6期

机译：MgCl_2（THF）_2负载齐格勒-纳塔催化剂制备的乙烯-1-己烯和乙烯-1-辛烯共聚物的微观结构
4. Ziegler-natta/metallocene hybrid catalysts on SiO_2/MgCl_2 bisupport for the ethylene polymerization with respect to the Mg/Si mole ratio [C] . Han Seock Cho, Jin Suk Chung, Young Gwan Ko, Tokyo conference on advanced catalytic science and technology . 1999

机译：Ziegler-Natta /茂金属杂化催化剂上的SiO_2 / MgCl_2 Bisupport关于乙烯聚合相对于Mg / Si摩尔比
5. Gas-phase ethylene/1-hexene copolymerization over magnesium chloride-supported Ziegler-Natta catalysts [D] . Liu, Wei 2002

机译：氯化镁负载的齐格勒-纳塔催化剂上的气相乙烯/ 1-己烯共聚
6. Comparative Study on Kinetics of Ethylene and Propylene Polymerizations with Supported Ziegler–Natta Catalyst: Catalyst Fragmentation Promoted by Polymer Crystalline Lamellae [O] . Zhen Zhang, Baiyu Jiang, Feng He, 2018

机译：负载齐格勒-纳塔催化剂的乙烯和丙烯聚合动力学的比较研究：聚合物结晶薄片促进的催化剂裂解
7. Gas-phase ethylene polymerization studies using a magnesium chloride-supported Ziegler-Natta catalyst. [O] . Naicker Omasha. 2006

机译：使用氯化镁负载的齐格勒 - 纳塔催化剂的气相乙烯聚合研究。

Effect of Hydrogen on the Ethylene Polymerization Process over Ziegler-Natta Catalysts Supported on MgCl_2(THF)_2. II. Kinetic Studies

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