Enhanced adhesive properties of polypropylene through copolymerization with 10-undecen-1-ol

摘要

Propylene was copolymerized with 10-undecen-1-ol with the use of dimethylsilanylbis(2-methyl-4-phenyl-1-inde-nyl)zirconium dichloride as pre-catalyst metallocene and MAO or MAO and TIBA as cocatalyst. Comonomer incorporations from 0.1 to 0.9 mol% or 0.5-3.6 wt% were obtained. With MAO and TIBA as cocatalyst, instead of MAO alone, the catalyst deactivation was diminished and molar mass was stabilized but the comonomer reactivity was slightly reduced. Improved adhesive properties relative to polypropylene were demonstrated with a T-peel test, contact angle measurements, and a paintability test. The surface properties of a blend, that contained a small amount of hy-droxyl groups was also shown to have improved adhesive properties.