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

Abstract: Triisobutylaluminum (TIBA), triethylaluminum (TEA), diisobutylaluminum hydride (DIBAH) and methylaluminoxane (MAO) were evaluated as activators of neodymium chloride tripentanolate catalyst in order to investigate their influence over the catalytic activity, 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 polymers with highest cis-1,4 structure content with 98.4 and 97.3% respectively. 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.

Bibliographic Details

Main Authors:	Valencia López,Luis Alexandro, Enríquez-Medrano,Francisco Javier, Maldonado Textle,Hortensia, Soriano Corral,Florentino, López González,Héctor Ricardo, St Thomas,Claude, Hernández Gámez,Francisco, Olivares Romero,José Luis, Díaz de León Gómez,Ramón Enrique
Format:	Digital revista
Language:	English
Published:	Sociedad Química de México A.C. 2016
Online Access:	http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2016000300141
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