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Catalysts 2013, 3(1), 176-188; doi:10.3390/catal3010176

A Comparative Study on the Homo-, Co- and Ter-Polymerization Using Ethylene, 1-Decene and p-Methylstyrene

Convergent Technology R&D Division, Korea Institute of Industrial Technology, Ansan-si, Korea
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Received: 21 December 2012 / Revised: 1 February 2013 / Accepted: 7 February 2013 / Published: 22 February 2013
(This article belongs to the Special Issue Molecular Catalysis for Precise Olefin Polymerization)
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Abstract

We synthesized polyethylene (PE), poly(ethylene-co-1-decene), poly(ethylene-co-p-methylstyrene) and poly(ethylene-ter-1-decene-ter-p-methystyrene) using a rac-Et(Ind)2ZrCl2 metallocene catalyst and a methylaluminoxane cocatalyst system. The materials were characterized using nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy. We compared and studied the kinetics, thermal properties and mechanical ones of these polymers. Tg was related to the amorphous phase of the polymers, whereas the tensile strength and storage modulus (E’) were related to the crystalline phase. We also found that PE has the highest crystallinity through differential scanning calorimetry and wide-angle X-ray scattering analysis. The polymerization rates of poly(ethylene-co-1-decene) and poly(ethylene-ter-1-decene-ter-p-methystyrene) were always higher than that of polyethylene.
Keywords: metallocene catalysts; homopolymer; copolymer; terpolymer metallocene catalysts; homopolymer; copolymer; terpolymer
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Yang, D.J.; Kim, H.J.; Kim, D.H. A Comparative Study on the Homo-, Co- and Ter-Polymerization Using Ethylene, 1-Decene and p-Methylstyrene. Catalysts 2013, 3, 176-188.

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