Title: The Low Pressure Fischer Polymerization of Ethylene with <font>Al</font>+<font>AlCl</font><sub>3</sub>+<font>TiCl</font><sub>4</sub> Revisited
Abstract: World Scientific Series in 20th Century ChemistryAcross Conventional Lines, pp. 1166-1170 (2003) No AccessThe Low Pressure Fischer Polymerization of Ethylene with Al+AlCl3+TiCl4 RevisitedGeorge A. Olah, Mark Bruce, Francoise Clouet, S. Morteza, F. Farnia, Omar Farooq, G. K. Surya Prakash, John Welch, and Jack L. KoenigGeorge A. OlahDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, Mark BruceDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, Francoise ClouetDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, S. MortezaDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, F. FarniaDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, Omar FarooqDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, G. K. Surya PrakashDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, John WelchDonald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA, and Jack L. KoenigDepartment of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106, USAhttps://doi.org/10.1142/9789812791405_0230Cited by:0 (Source: Crossref) PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: Fischer in 1943 described the AlCl3 + Al + TiCl4 catalyzed polymerization of ethylene to solid polyethylene at temperatures of 130–180 °C and pressures of 30–80 atm. No characterization of the polyethylene formed was given nor any mechanism suggested for the reaction. Recently, Martin et al reinvestigated the Fischer polymerization and reported that the polyethylene obtained in admixture with Friedel–Crafts-type hydrocarbon oils is highly branched. In contrast, our reinvestigation of the Fischer polymerization of ethylene showed that if the temperature of the reaction mixture is kept in the range suggested by Fischer (130–180 °C) or below, besides Friedel–Crafts-type oils, linear high-density polyethylene similar to Ziegler polyethylene is obtained. Without proper temperature control, however, the exothermic reaction can lead to the results reported by Martin et al. Study of the mechanism of the Fischer polymerization indicates that the system is well suited for the in situ formation of ethylalumiinum chlorides via the Hall and Nash reaction, as well as isomeric bis(dichloroaluminio)ethanes which, with TiCl4, form the active Ziegler–Natta-type coordination polymerization catalysts. Based on a lecture presented at the "Polymer Synthesis Symposium" honoring Professor M. Schwarz, University of Southern California, Los Angeles, CA, Nov 22, 1985. FiguresReferencesRelatedDetails Recommended Across Conventional LinesMetrics History PDF download
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 1
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