The Influence of co-catalyst in the Polymerization of 1,3-butadiene Catalyzed by Neodymium Chloride Tripentanolate

Authors

  • Luis Alexandro Valencia López University of Freiburg
  • Francisco Javier Enríquez-Medrano Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • Hortensia Maldonado Textle Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • Florentino Soriano Corral Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • Héctor Ricardo López González Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • Claude St Thomas Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • Francisco Hernández Gámez Centro de Investigación en Química Aplicada, Saltillo, Coahuila
  • José Luis Olivares Romero Instituto de Ecología A.C.
  • Ramón Enrique Díaz de León Gómez Centro de Investigación en Química Aplicada, Saltillo, Coahuila

DOI:

https://doi.org/10.29356/jmcs.v60i3.96

Keywords:

Coordination polymerization, catalyst system, neodymi-um, aluminum co-catalyst, 1, 3-butadiene.

Abstract

Triisobutylaluminum (TIBA), triethylaluminum (TEA), di-isobutylaluminum hydride (DIBAH) and methylaluminoxane (MAO) were evaluated as activators of neodymium chloride tripentanolate catalyst in order to investigate their influence over the catalytic activi-ty, macro- and microstructure, and thermal properties of of resulting polybutadienes. The higher catalytic activities were achieved by TEA and TIBA as co-catalysts, whereas TIBA and DIBAH led to the poly-mers with highest cis-1,4 structure content with 98.4 and 97.3% re-spectively. The catalytic activity was remarkably poor with MAO as co-catalyst, as well as low stereocontrol. Number average molecular weight values were observed in the range of 260 to 720 kg/mol.

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Author Biography

José Luis Olivares Romero, Instituto de Ecología A.C.

Red de Estudios Moleculares Avanzados Campus III, Xalapa Veracruz

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Published

2017-10-12

Issue

Vol. 60 No. 3 (2016): Regular Issue

Section

Regular Articles

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