Polymer Bulletin

, Volume 37, Issue 4, pp 469–474 | Cite as

The effect of the ethylene pressure on its reaction with 1-hexene, 1-octene and 4-methyl-1-pentene

  • Raquel S. Mauler
  • Griselda B. Galland
  • Rosangela B. Scipioni
  • Raul Quijada
Article
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Summary

Copolymers of ethylene and 1-hexexe, 1-octene and 4-methyl-1-pentene were obtained using Et[In]2ZrCl2/MAO catalyst at various pressures. The increase of 1-hexene and 1-octene concentration in the feed increases catalyst activity(g/nZr.h.bar) and productivity(g/nZr.h). For 4-methyl-1-pentene the activity is independent on comonomer concentration. Increasing the ethylene pressure the productivity of the copolymerization increases and the activity shows a weak decay. Characterization of the copolymer shows that at higher pressure the cristallinity of the copolymers is higher due to lower comonomer incorporation. There is a good linear correlation of cristallinity with comonomer concentration in the feed for 1-hexene and 1-octene at a fixed pressure, but not for 4-methyl-1-pentene.

Keywords

Polymer Ethylene High Pressure Catalyst Activity Linear Correlation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Raquel S. Mauler
    • 1
  • Griselda B. Galland
    • 1
  • Rosangela B. Scipioni
    • 1
  • Raul Quijada
    • 2
  1. 1.Instituto de QuímicaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  2. 2.Departamento de Ingeniería Química, Facultad de Ciencias Físicas y MatemáticasUniversidad de ChileSantiagoChile

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