Polimerização 1,4-cis de butadieno com sistemas catalíticos Ziegler-Natta à base de neodímio

• Main Authors: Mello Ivana L., Coutinho Fernanda M. B., Soares Bluma G., Nunes Denise S. S., Costa Marcos A. S., Maria Luiz Claudio de Santa
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2004-01-01
• Series: Química Nova
• Subjects: high cis polybutadiene; Ziegler-Natta catalyst; neodymium catalysts
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000200018

Nowadays the catalyst systems based on neodymium are the ones most used in the high cis polybutadiene production. These systems contain a neodymium compound (catalyst), an alkylaluminium compound (cocatalyst) and a halogen compound (halogenating agent). The microstructure, molecular weight characteristics and the reaction activity are influenced by the nature and concentration of catalyst system components. Those characteristics are also affected by the polymerization conditions. This paper presents a brief review on 1,4-cis-butadiene polymerization on neodymium catalysts.