Copolymerization of Ethylene/1-Olefin with Mesoporous Titania-Supported Zirconocene/MAO Catalyst

Somchat Amornlertpreecha; Takeshi Shiono; Bunjerd Jongsomjit

doi:10.4186/ej.2012.16.5.9

Copolymerization of Ethylene/1-Olefin with Mesoporous Titania-Supported Zirconocene/MAO Catalyst

Authors

Somchat Amornlertpreecha Chulalognkorn University
Takeshi Shiono Hiroshima University
Bunjerd Jongsomjit Chulalongkorn University

DOI:

https://doi.org/10.4186/ej.2012.16.5.9

Keywords:

Mesoporous TiO2, polyethylene, copolymerization, zirconocene, methylaluminoxane.

Abstract

Different mesoporous titanias synthesized by hydrolysis and polycondensation reactions of tetrabutyl titanate with various hydrolysis ratios (H₂O/Ti by mole) were employed as supports for zirconocene/MAO catalysts in ethylene/1-olefin copolymerization. The pure anatase phase of titania was detected by X-ray diffraction (XRD) and the morphology was seen by scanning electron microscopy (SEM). The titania obtained was then impregnated with methylaluminoxane (MAO). The amounts of [Al]MAO were measured by energy dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). Upon polymerization, it was found that the high surface area of titania apparently exhibited high polymerization activity due to large amounts of [Al]MAO present as seen by EDX and XPS. The obtained copolymer was further characterized by 13C nuclear magnetic resonance (13C NMR) and differential scanning calorimetry (DSC). More details are discussed further.

Downloads

Download data is not yet available.

Author Biographies

Somchat Amornlertpreecha
Google Scholar

Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Takeshi Shiono
Google Scholar

Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan

Bunjerd Jongsomjit
Google Scholar

Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Downloads

Published In

Vol 16 No 5, May 20, 2012

How to Cite

[1]

S. Amornlertpreecha, T. Shiono, and B. Jongsomjit, “Copolymerization of Ethylene/1-Olefin with Mesoporous Titania-Supported Zirconocene/MAO Catalyst”, Eng. J., vol. 16, no. 5, pp. 9-16, May 2012.

Cited By

Find in Google Scholar

Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.