Late Transition Metal Catalyst Based on Cobalt for Polymerization of Ethylene

Zohuri, Gholamhossein; Damavandi, Saman; Dianat, Ebrahim; Sandaroos, Reza; Ahmadjo, Saeid

doi:10.1080/00914037.2010.551362

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Eventually, by introducing electron donors to the Ziegler-Natta catalyst, the catalytic activity increases 1000 times and stereoregularity more than 98% of isotacticity index [17][18][19]. Subsequently, various inorganic granular materials such as silica, alumina, zirconia, titania, MCM-41, zeolite, etc., have been investigated as a support for the modified Ziegler-Natta catalyst [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Melamine-Formaldehyde-Supported Titanium-Based Heterogeneous Ziegler-Natta Catalyst for Ethylene Polymerization in Slurry Process

Kalita

Bora

Dolui

2013

International Journal of Polymeric Materials and Polymeric Biom

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Ethylene was polymerized at 40 C temperature and 1 atm. pressure using melamine-formaldehyde (M-F) supported titanium tetrachloride (TiCl 4 ) catalyst. Polymer-supported catalysts were prepared with a different weight ratio of TiCl 4 / M-F in hexane. The wt% titanium incorporated in the polymer matrix was determined by UV-visible spectroscopy. In addition, the resulting catalysts were characterized by SEM-EDX, XRD, and TGA. The catalytic productivity is found to be 4721.09 g PE/g Ti/h. The productivity of the catalysts also depends on the titanium content in the polymer matrix. The catalyst with titanium content 3.5 wt% showed maximum activity. These catalysts also showed good storability.

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