Preparation of Polyethylenes End-Tethered with POSS

Significance

Preparation of a homogeneous polyhedral silsesquioxane (POSS)-supported Pd-diimine complex 3 and telechelic polyethylenes end-tethered with POSS nanoparticles 5 was reported. Thus, complex 3 was prepared by the reaction of a Pd-diimine catalyst 1 with acryloisobutyl-POSS 2 at room temperature for 48 h (40% yield). Ethylene polymerization was carried out with 3 at 5 °C under 27.5 bar in chlorobenzene followed by quenching 4 with triethylsilane to afford compound 5.