Effects of Various High a-Olefins on the Terpolymerization with Metallocene Catalyst and Cocatalyst System

T.W. Kim1; U.R. Cho2; D.H. Kim1

doi:10.14233/ajchem.2013.F36

Issue

Vol. 25 No. 9 (2013): Vol 25 Issue 9

Issue Published : 25 March 2013

Effects of Various High a-Olefins on the Terpolymerization with Metallocene Catalyst and Cocatalyst System

https://doi.org/10.14233/ajchem.2013.F36

T.W. Kim1

1Convergent Technology R & D Division, Korea Institute of Industrial Technology, Ansan-si, Republic of Korea 2Korea University of Technology and Education, Cheoan-si, Republic of Korea *Corresponding author: Fax: +82 31 80406239; Tel: +82 31 80406226; E-mail: dhkim@kitech.re.kr

U.R. Cho2

D.H. Kim1

Corresponding Author(s) : T.W. Kim1

Asian Journal of Chemistry, Vol. 25 No. 9 (2013): Vol 25 Issue 9
Article Published : 11 April 2013

Abstract

Terpolymers composed of ethylene, high a-olefin and p-methyl styrene using a rac-Et(Ind)₂ZrCl₂ catalyst and cocatalyst system were synthesized. The terpolymers obtained were characterized by ¹H NMR and ¹³C NMR spectroscopy. The catalytic activity, molecular weight, molecular weight distribution and compositions of the polymers were analyzed. The thermal properties of the polymers were investigated. The crystallinity of the terpolymers was determined by differential scanning calorimetry and wide-angle X-ray scattering. The catalytic activity increased to some degree with increasing chain length of the high a-olefin in the terpolymers. The crystallinity, mechanical and thermal properties decreased with increasing chain length of high a-olefins in the terpolymers.

Keywords

Polyolefins Elastomers Catalyst High a-olefin Terpolymerization.

(1)

Kim1, T.; Cho2, U.; Kim1, D. Effects of Various High a-Olefins on the Terpolymerization With Metallocene Catalyst and Cocatalyst System. ajc 2013, 25, 5297-5302.