NDLI: Catalytic systems based on TiCl4/MgCl2/SiCl4-n(OR)n for olefin polymerization

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Catalytic systems based on TiCl4/MgCl2/SiCl4-n(OR)n for olefin polymerization

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Catalytic systems based on TiCl4/MgCl2/SiCl4-n(OR)n for olefin polymerization

Content Provider	Taylor & Francis Online
Author	Rajmankina, T. Morillo, A. Chirinos, J. J. Parada, A. Fernández, J. G.
Abstract	The effect of the alcohol nature in TiCl4 catalysts supported on MgCl2, modified by the recrystallization technique with SiCl4, has been investigated in terms of activity and tacticity control. A series of alcoholic solutions of MgCl2, using 1-hexanol, t-butanol, butanol, iso-propanol, propanol and ethanol, were recrystallized with SiCl4 and the supports were subsequently impregnated with TiCl4. Also, as a way of comparison, catalysts were prepared from solutions of MgCl2 in 1-hexanol recrystallized by solvent evaporation and quick cooling. The supports and catalysts were characterized by infrared and energy dispersive scanning (EDS). Polymerization of ethylene and propylene was performed under different temperature and pressure conditions, using triethylaluminium as a cocatalyst in the absence of electron donors. The catalytic activity depended strongly on the length of the alkyl group and the nature of the isomeric alcohol used in the treatment of the support. The yield and isotacticity of the polypropylene are governed by polymerization parameters such as pressure and support treatment. The EDS results confirmed the presence of alkoxysilanes in the catalysts treated with SiCl4.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF HTM / HTML
ISSN	15685551
DOI	10.1163/156855503321127484
Journal	Designed Monomers and Polymers
Volume Number	6
Issue Number	1
Language	English
Publisher	Taylor & Francis Group
Publisher Date	2012-04-02
Access Restriction	Open
Subject Keyword	OLEFIN POLYMERIZATION ZIEGLER-NATTA CATALYST RECRYSTALLIZATION TECHNIQUES CATALYTIC SUPPORT ALKOXYSILANES
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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Ethylene polymerization using metallocenes supported on MgCl2/SiCl4−n (n-C6H13O)n

Effect of etoh/mgcl2 molar ratios on the catalytic properties of mgcl2-sio2/ticl4 ziegler-natta catalyst (2011).

Synergistic effects of the ZnCl2-SiCl4 modified TiCl4/MgCl2/THF catalytic system on ethylene/1-hexene and ethylene/1-octene copolymerizations

Effect of EtOH/MgCl2 Molar Ratios on the Catalytic Properties of MgCl2-SiO2/TiCl4 Ziegler-Natta Catalyst for Ethylene Polymerization

Adsorption of TiCl4 and electron donor on defective MgCl2 surfaces and propylene polymerization over Ziegler-Natta catalyst: A DFT study

Effects of FeCl3 doping on the performance of MgCl2/TiCl4/DNPB catalyst in 1-hexene polymerization

Study on the microstructures of polypropylene synthesized by a novel MgCl2-supported and low Ti-loading Ziegler–Natta catalyst

Synthesis of Low Isotactic Polypropylene Using MgCl2/AlCl3-supported Ziegler–Natta Catalysts Prepared Using the One-Pot Milling Method

Highly efficient FeCl3 doped Mg(OEt)2/TiCl4-based Ziegler–Natta catalysts for ethylene polymerization

Catalytic systems based on TiCl4/MgCl2/SiCl4-n(OR)n for olefin polymerization

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