Particle and Aerosol Research
Vol. 11, No. 4, December 2015, Pages 107-113
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Polymerization of fibrous and high molecular weight polyethylene using MgCl2/SBA-16/TiCl4
Salinla Panpoom, Sujitra Klinsrisuk, Surangkhana Martwiset, and Choosak Poonsawat*
Materials Chemistry Research Center, Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
Received 03 August 2015, Revised 11 December 2015, Accepted 27 December 2015, Available online 06 January 2016
http://dx.doi.org/10.11629/jpaar.2015.11.4.113
Abstracts
SBA-16 (Santa Barbara Amorphous) was synthesized over supported TiCl4/MgCl2. Due to its high surface area and excellent morphological performance, it was expected to form the bi-supported catalytic system and be used for ethylene polymerization. Polymerization of ethylene was carried out at atmospheric pressure using hexane as solvent and triethylaluminium as cocatalyst. ICP, FTIR, DSC, TG-DTA were used to characterize polyethylene and catalyst product. Optimum conditions for ethylene polymerization were found to be 100 mL hexane, Al/Ti molar ratio of 160 and 1 h polymerization at 60 ¨¬C. The activity of 396.76 kg PE/ mol Ti.h.atm was achieved. Melting point of the obtained polymer was in the range of 132-135 ¨¬C and the highest degree of crystallization was 46%.
Keywords
Ethylene polymerization, MgCl2/SBA-16/TiCl4, Ziegler-Natta catalyst, Supported catalyst
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