Pentalene substituted metallocene complexes for olefin polymerization

Walter Kaminsky; Oliver Serber; Ralf Werner

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Pentalene substituted metallocene complexes for olefin polymerization

机译：用于烯烃聚合的戊烯取代的茂金属配合物

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Pentalene bridged zirconocene/methylaluminoxane catalysts are described as useful for the polymerization of ethene, propene, and co-polymerizations with norbornene. They show a high thermostability up to polymerization temperatures of 105℃. Polyethylenes with molecular masses of 4 million g/mol are obtained at 30℃and 500,000 g/mol at more than 90℃. The molecular mass distribution varies between 2 and 15 because of the steric isomers of the pentalene ligand. Some of the complexes are active for the polymerization of propene. Similar to ansa cyclopentadienyl-fluorenyl complexes, the tacticity of the produced polypropylenes can be changed from syndiotactic to isotactic by substitution of the cyclopentadienyl ring.

机译：据描述，戊烯桥接的锆茂/甲基铝氧烷催化剂可用于乙烯，丙烯的聚合以及与降冰片烯的共聚。它们在高达105℃的聚合温度下显示出很高的热稳定性。在30℃时获得分子量为400万克/摩尔的聚乙烯，在90℃以上时获得500,000克/摩尔的聚乙烯。由于戊烯配体的空间异构体，分子量分布在2至15之间变化。一些配合物对丙烯的聚合具有活性。类似于ansa环戊二烯基-芴基配合物，可以通过取代环戊二烯基环，将制备的聚丙烯的立构规整度从间规变为等规。

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来源
《Coordination chemistry reviews》 |2006年第2期|p.110-117|共8页
作者
Walter Kaminsky; Oliver Serber; Ralf Werner;
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作者单位

Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, D-20146 Hamburg, Germany;

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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类无机化学;
关键词
metallocene catalysts; olefin polymerization; polypropylene; pentalene-zirconium complexes;

机译：茂金属催化剂;烯烃聚合;聚丙烯;戊烯-锆配合物;

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机译：结合三齿甲硅烷基取代的双（萘氧基）吡啶和双（萘氧基）噻吩配体的第4组后茂金属络合物：“振荡”烯烃聚合催化的探测系统
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3. Preparation of ansa-niobocene and ansa-tantalocene olefin hydride complexes as transition state analogues in metallocene-catalyzed olefin polymerization [J] . Chirik PJ., Zubris DL., Ackerman LJ., Organometallics . 2003,第1期

机译：茂金属催化的烯烃聚合过程中过渡态类似物的Ansa-Niobocene和Ansa-tantalocene氢化烯烃配合物的制备
4. Synthesis and Characterization of Half-Metallocene Dialkyl Complexes of Hafnium with Bidentate Iminopyrrolyl Ligands and Their Catalytic Olefin Polymerization [C] . Takahiro Yasumoto, Kazushi Mashima Symposium on Organometallic Chemistry . 2004

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5. Metallocene-mediated olefin polymerization: The effects of distal ligand perturbations on polymer stereochemistry. [D] . Miller, Stephen Albert. 2000

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6. Preparation of Half- and Post-Metallocene Hafnium Complexes with Tetrahydroquinoline and Tetrahydrophenanthroline Frameworks for Olefin Polymerization [O] . Jun Won Baek, Su Jin Kwon, Hyun Ju Lee, 2019

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7. Trinuclear tris(ansa-metallocene) complexes of zirconium and hafnium for olefin polymerization [O] . Lars N. Jende, Aurelien Vantomme, Alexandre Welle, 2018

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8. Metallocene Catalyzed Copolymerization of Olefins with Functional Monomers. ActaPolytechnica Scandinavica Chemical Technology Series No. 245 [R] . Aaltonen, P. 1997

机译：茂金属催化烯烃与功能单体的共聚合。 actapolytechnica scandinavica化学技术系列第245号

Pentalene substituted metallocene complexes for olefin polymerization

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