Ewen et al., "Crystal Structures and Sterotypes Propylene Polymerizations with Chiral Hafnium Metallocene Catalysts", J. Am. Chem. Soc., 109, (1987), pp. 6544-6545. |
Mise et al., "Excellent Steroregular Isotactic Polymerizations of Propylene with C.sub.2 -Symmetric Silyene-Bridged Metallocene Catalysts", Chemistry Letters, (1989), pp. 1853-1356. |
Spaleck et al. "High Molecular Weight Polypropylene Through Specifically Designed Zirconocene Catalysts", Angew. Chem. Int. Ed. Engl., 31, (1992), pp. 1347-1350. |
Grassi et al., "Microstructure of Isotactic Polypropylene Prepared with Homogeneous Catalysis: Steroregularity, Reioregularity, and 1,3-Insertion", Macromolecules, 21, (1988), pp. 617-622. |
Spaleck et al., "The Influence of Aromatic Substituents on the Polymerization Behavior of Bridged Zirconocene Catalysts", Organometallics, 13 (1994), pp. 954-963. |
Kakugo et al., ".sup.13 CNMR Determination of Monomer Sequence Distribution in Ethylene-Propylene Copolymers Prepared with .differential.-TiCI.sub.3 -A1(C.sub.2 H.sub.5).sub.2 Cl",Macromolecules, 15, (1982) pp. 1150-1152. |
Zhang et al., "DSC and .sup.13 C NMR studies of ethylene-propane copolymers prepared by a highly active and sterospecific catalyst", Macromol. Chem. Phys. 195, (1994), pp. 1063-1073. |
Ray et al., "Carbon-13 Nuclear Magnetic Resonance Determination of Monomer Composition and Sequence Distributions in Ethylene-Propylene Copolymers Prepared with a Stereoregular Catalyst System", Macromolecules, vol. 10, No. 4, (Jul.-Aug. 1977), pp. 773-778. |
Zambelli et al., "Copolymerization of ethylene with propene in the presence of homogeneous catalytic systems based on Group 4 metallocenes and methylalumoxane: implications of the reactivity ratios on the reaction mechanism", Makromol. Chem. Rapidcommun., 12, (1991), pp. 523-528. |
Rossi et al., "Microstructure of Ethylene-1-Butene Copolymers Produced by Zirconocene/Methylaluminoxane Catalysis", Macromolecules, vol. 29, No. 7, (1996), pp. 2331-2338. |
Quijada et al., "Synthesis and characterization of ethylene-1-hexene copolymers using homogenous Ziegler-Natta catalysts", Polymer Bulletin, 35, (1995), pp. 299-306. |
Koivumaki et al., "Copolymerization of Ethene and Propene in Liquid propene with MgCI.sub.2 /TiCI.sub.4, VOCI.sub.3 and Cp.sub.2 ZrCi.sub.2 Catalyst Systems--A Comparision of Products", Eur. Polym. J., Vol. 30, No. 10, (1994), pp. 1111-1115. |
Brintzinger et al., "Sterospecific Olefin Polymerization with Chiral Metallocene Catalyst", Angew. Chem. Int. Ed. Engl., 34, (1995), pp. 1143-1170. |