Publication: Condensed mode cooling for ethylene polymerization: Part I. the effect of different induced condensing agents on polymerization rate
Issued Date
2015-04-01
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ISSN
15213935
10221352
10221352
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2-s2.0-84927912275
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Mahidol University
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SCOPUS
Bibliographic Citation
Macromolecular Chemistry and Physics. Vol.216, No.8 (2015), 903-913
Suggested Citation
Arash Alizadeh, Montree Namkajorn, Ekasith Somsook, Timothy F.L. McKenna Condensed mode cooling for ethylene polymerization: Part I. the effect of different induced condensing agents on polymerization rate. Macromolecular Chemistry and Physics. Vol.216, No.8 (2015), 903-913. doi:10.1002/macp.201400600 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/35754
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Title
Condensed mode cooling for ethylene polymerization: Part I. the effect of different induced condensing agents on polymerization rate
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Abstract
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The effect of commonly used induced condensing agents (ICAs) on the rate of polymerization of ethylene on a supported Ziegler-Natta catalyst in a gas-phase process is investigated. It is observed that the instantaneous rate of ethylene polymerization is promoted in presence of all ICAs studied. This is attributed to the effect of the heavy ICAs in enhancing the local concentration of ethylene at the active polymerization sites that are dispersed within the growing polymer particles. It is found that the higher the solubility of ICA in the polymer, the greater the observed effect. It is also observed that the enhancement due to the presence of an ICA is greater during the initial phase of the polymerization.