| he transition metal-catalyzed polymerization of olefins is of intense technical and commercial interest. From the pioneering work of Ziegler and Natta to the recent developments in metallocene chemistry, Chapter One provides a concise introduction to many of the significant advances made over the past forty years. Variation in catalyst structure has led to the development of single-site homogeneous catalysts based on group 4 titanium and zirconium cyclopentadienyl complexes that allow for control of polymer microstructure, molecular weight and comonomer incorporation. In contrast, late metal catalysts (groups 9 and 10) most often dimerize or oligomerize olefins due to chain transfer rates that are competitive with olefin insertion.;Chapter Two describes the development and study of a new class of late metal Ni(II) complexes of the general structure (ArN=C(R)-C(R)=NAr) NiBr;The polymerization of propylene and higher ;Procedures for carrying out the living polymerization of ;The development of Nickel(II) catalysts containing unhindered... |
