Abstract:
The polymerization of butadiene was studied using heterogeneous cobalt nickel (oxide) bimetallic catalyst. The prepared catalyst was subjected to calcination at 200,400 and 600°C temperature. This treatment results in the formation of different phases with multiple oxidation states and unusual configuration of edges, corners and crystal planes. The characterization of the catalyst was carried out by XRD, SEM, XRF, TGA, FTIR and TPR/TPD. The catalytic activity was studied for the polymerization of butadiene gas in toluene, in a Parr reactor system. The products obtained, were characterized by FTIR, GC/MS, 1H and 13C NMR spectroscopy and Static Laser Light Scattering (SLLS) analysis for the determination of molecular weight. The catalysts are highly active towards the polymerization of butadiene. The active chains of the product were terminated with hydroxyl group (OH) by using H2O2 or acidic solution of ethanol. The SLLS studies indicates high molecular weight product. The study reflects that the catalytic reaction conditions, the calcinations temperatures which control the oxidation state, phase of the catalyst and stability of the catalyst are mainly responsible for the change in products selectivity.
Page(s):
173-186
DOI:
DOI not available
Published:
Journal: Proceedings 6th International Bhurban Conference on Applied Sciences and Technology , Volume: 1, Issue: 0, Year: 2009