Abstract
AbstractHomo‐ and copolymerization of butadiene and styrene in the presence of the catalyst system Nd(octanoate)3/CCl4/Al(iBu)3 (iBu: isobutyl) were investigated at 60°C in heptane as solvent. The initiating catalyst system is very effective in the polymerization of butadiene. However, the presented copolymerization of butadiene and styrene is only practicable when using a special addition order of the catalyst components and a prescribed ageing phase. Copolymers obtained from various monomer feed ratios were characterized by 1H and 13C NMR spectroscopy and gel‐permeation chromatography (GPC). The copolymer characteristics especially microstructure, molar mass and molar‐mass distribution (MMD) are strongly dependent on the composition of the monomer mixture.
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