Study of the polymerization of 1-octadecene with different metallocene catalystsReport as inadecuate




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1-Octadecene C18 was polymerized by using different metallocene catalysts. The rac-EtInd2ZrCl2-MAO I and rac-Me2SiInd2ZrCl2-MAO III presented the highest C, activity as compared with rac-Et2-Me-Ind2ZrCl2-MAO II and Ph2CFluCpZrCl2-MAO IV catalysts. Catalyst IV produced polymers with highest molecular weights. The microstructure of the polymers was determined by C-13-NMR spectro scopy. Catalyst systems I, II and III produced isotactic polymers while catalyst IV produced polymers with mainly syndiotactic structures but with large amount of stereoregular error.



Author: Guevara, Juan Luis; - Yazdani-Pedram Zobeiri, Mehrdad; - Galland, Griselda B.; - Quijada Abarca, Juan; - Ribeiro, D.; -

Source: http://repositorio.uchile.cl/



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