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

    Year: 2004

    Journal: Reactive & Functional Polymers 61 (2004) 53-62, 20111221

    Authors: Santeri Paavola, Riku Uotila, Barbro Löfgren, Jukka V. Seppälä

    Organizations: Polymer Technology, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT, Finland

    Propylene was copolymerized with 10-undecen-1-ol with the use of dimethylsilanylbis(2-methyl-4-phenyl-1-indenyl) 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 hydroxyl groups was also shown to have improved adhesive properties.