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

2004; Brazilian Chemical Society; Volume: 27; Issue: 2 Linguagem: Inglês

10.1590/s0100-40422004000200018

1678-7064

Ivana L. Mello, Fernanda M. B. Coutinho, Bluma G. Soares, Denise S. S. Nunes, Marcos Heil Costa, Luiz Cláudio de Santa Maria,

Synthesis and characterization of novel inorganic/organometallic compounds

NATTA CATALYST SYSTEMS BASED ON NEODYMIUM.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.