Development of Metallocene-based Propylene-Ethylene
نویسندگان
چکیده
منابع مشابه
propylene glycol , and ethylene glycol - based antifreeze
of AF performance. that contain EG has been reponed to result in irreversible damage to renal, hepatic, cardiovascular, and central nervous systems, and is a cause of death in household pets and other animals.2-4 It is not known why some animals ingest EGcontaining products. Although there are reports suggesting that the "sweet" taste of EG, and of products containing it, may lead to ingestion ...
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Beside Ziegler-Natta and Phillips catalysts the development of methylaluminoxane (MAO) as cocatalyst in combination with metallocenes or other transition metal complexes for the polymerization of olefins has widely increased the possibilities in controlling the polymer composition, polymer structure, tacticity and special properties with high precision. These catalysts allow the synthesis of is...
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Bis(2-R-ind)ZrCl2 (R: H or phenyl) was supported on different types of silica by in situ impregnation method and used for ethylene polymerization. In this method, the step of catalyst loading on support was eliminated and common alkyl aluminum (triisobutylaluminum, TiBA) cocatalyst was used instead of expensive methyl aluminiumoxane (MAO) cocatalyst in the polymerization. The effect of surface ...
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One of the most efficient and versatile ways to synthesize polyolefin nanocomposites is the in-situ polymerization of olefins in the presence of nano particles by metallocene catalysts. Metallocene/methylaluminoxane (MAO) catalysts are soluble in hydrocarbons and therefore they can be absorbed perfectly in solution onto the surface of particles or fibers and after addition of ethene or propene ...
متن کاملdiscovery and development of metallocene-based polyolefins with special properties
beside ziegler-natta and phillips catalysts the development of methylaluminoxane (mao) as cocatalyst incombination with metallocenes or other transition metal complexes for the polymerization of olefins haswidely increased the possibilities in controlling the polymer composition, polymer structure, tacticity and special properties with high precision. these catalysts allow the synthesis of isot...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 2004
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.53.796