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Articulation of kinetics of quasi-living stages to those of slurry polymerization and an unified explanation - propene polymerization with MgCl2EB/TiCl4-Al(C2H5)3 (T. Keii). Active sites and mechanisms of stereospecificity in heterogeneous Ziegler-Natta catalysts (P. Corradini et al.). Dependence of transient comonomer kinetics on catalyst design by magnesium chloride supported polymerization of ethene and propene (K.A. Solli et al.). A new mechanism for hydrogen activation in propene polymerization catalysts (A. Guyot et al.). Rate enhancement effects in the prepolymerization and copolymerization of ethylene and &agr;-olefins (P.J.T. Tait, I.G. Berry). Characterization of active sites in Ti/Hf/MgCl2 catalysts by chiral reagents (F. Masi, F. Menconi). A new polymer-supported catalyst for olefin polymerization (L. Sun et al.). Active center determination in Ziegler-Natta polymerization: An innovative dual-labeling approach (S.N. Gan et al.). Recent tendency of research targets for industrial polypropylene catalysts (M. Terano). The control of molecular weight distributions in Ziegler-Natta catalysis (R. Spitz et al.). Synthesis and application of terminally magnesium bromide-functionalized isotactic polypropene (T. Shiono et al.). Wide range control of microtacticity in propylene polymerization with heterogeneous catalyst systems (M. Kakugo). New heterogeneous catalysts for polyolefins (E. Albizzati et al.). Change of internal donor for Mg(OEt)2-supported TiCl4 catalyst (D.H. Lee et al.). Temperature programmed decomposition of MgCl2/THF/TiCl4 bimetallic complex catalyst and its effect on the homo- and copolymerization of ethylene (Y.S. Koo et al.). Characterization of Mg/Ti type catalysts prepared from different Mg components (M. Murata et al.). Mechanism of the first steps of the isotactic polymerization with metallocene catalysts (W. Kaminsky, M. Arndt). Reaction mechanisms in metallocene-catalyzed olefin polymerization (H. Brintzinger et al.). Role of ions in coordination polymerization of olefins (F.S. Dyachkovskii). Copolymerization of hydrocarbon monomers in the presence of CpTiCl3 - MAO: Some information on the reaction mechanism from kinetic data and model compounds (A. Zambelli, C. Pellecchia). The role of ion-pair equilibria on the activity and stereoregularity of soluble metallocene Ziegler-Natta catalysts (J.J. Eisch, S.I. Pombrik). High molecular weight monodisperse polymers synthesized by rare earth metal complexes (H. Yasuda et al.). Lanthanocene based catalysts for olefin polymerization: Scope and present limitations (J.F. Pelletier et al.). Effect of ligand and inorganic support on polymerization performances of Ti and Zr catalyst (F. Ciardelli et al.). Design of non-metallocene single-site olefin polymerization catalysts (E.B. Tjaden, R.F. Jordan). Insite™ catalyst structure/activity relationships for olefin polymerization (J.C. Stevens). Novel molecular structure opens up new applications for insite™ based polymers (K.W. Swogger). Molecular weight distribution control with supported metallocene catalysts (S.K. Ihm et al.). Highly isospecific heterogeneous metallocene catalysts activated by ordinary alkylaluminiums (K. Soga). Mol mass regulation in the allyl nickel complex catalyzed 1,4-cis polymerization of butadiene (R. Taube et al.). Syndiotactic polypropylene (T. Shiomura et al.). Syntheses and properties of syndiotactic polystyrene (N. Ishihara, M. Kuramoto). The industrial synthesis of bimodal polyethylene grades with improved properties (L.L. Böhm et al.). Structure and properties of ethylene/&agr;-olefin copolymers polymerized with homogeneous and heterogeneous catalysts (S. Hosoda et al.). Progress in gas phase polymerization of propylene with supported TiCl4 and metallocene catalysts (K.D. Hungenberg et al.). Feature of metallocene-catalyzed polyolefins (N. Kashiwa). Ligand effects at transition metal centers for olefin polymerization (F.J. Karol, S.C. Kao). Propylene polymerizations with metallocene/teal/trityl tetrakis (pentafluorophenyl) aluminate mixtures (J.A. Ewen).
Recent development of olefin polymerization catalysts has caused marked changes in both industrial and academic research. Industrial use of homogeneous metallocene catalysts has already begun in the fields of high density polyethylene and syndiotactic polypropylene. Moreover, important data have been obtained from academic investigations which have proved useful for understanding conventional heterogeneous Ziegler-Natta catalysts. From the industrial viewpoint, however, heterogeneous high-yield catalysts seem to be more important.
The present volume contains invited lectures and contributed papers. The following topics are covered: (1) Heterogeneous Catalysts, (2) Metallocene Catalysts and (3) New Trends in the Polyolefin Industry.
- No. of pages:
- © Elsevier Science 1994
- 1st November 1994
- Elsevier Science
- eBook ISBN:
Japan Advanced Institute of Science and Technology, Hokuriko, Japan
Tokyo Institute of Technology, Tokyo, Japan
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