9783527317820

Tailor-Made Polymers : Via Immobilization of Alpha-Olefin Polymerization Catalysts

by ;
  • ISBN13:

    9783527317820

  • ISBN10:

    3527317821

  • Format: Hardcover
  • Copyright: 2008-03-31
  • Publisher: Wiley-VCH

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Summary

This first comprehensive handbook on this exciting field provides readers with a clear understanding of the current state of the art, ingenious solutions and opportunities. Researchers from academia and industry present such emerging topics as multi-component systems and computational chemistry, as well as the latest developments in competing and complementary technologies. The result is a well-balanced and up-to-date overview.

Author Biography

John Severn completed his Ph.D. at the University of Sussex and joined the group of Prof. R. van Santen at the Eindhoven University of Technology as a postdoc, working on the immobilization of alpha-olefin polymerization catalysts and the use of silsesquioxanes as homogeneous models. Then he joined the Dutch Polymer Institute working on the immobilization of single-site alpha-olefin polymerization catalyst, and with Avantium Technologies B.V. developing high throughput experimentation techniques for polyolefin catalysis. Since 2005 he has been a researcher at Borealis Polymer Oy, Finland.

John Chadwick received his Ph.D. from the University of Bristol, after which he joined Shell Research in Amsterdam. Following the formation of Montell Polyolefins, he transferred from Shell to the Montell (now Basell) research center in Ferrara, Italy, with special responsibility for fundamental Ziegler-Natta catalyst R&D. In 2001, he joined the polymer chemistry group at the Eindhoven University of Technology as Programme Coordinator for research on polyolefin catalysis and catalyst immobilization.

Table of Contents

Preface
List of Contributors
Designing Polymer Properties
Polyolefins
Levels and Scales of Polymer Structure and Modification
Polymer Design: The Catalyst's Point of View
Immobilizing "Single-site" Olefi n Polymerization Catalysts: The Basic Problems
Traditional Heterogeneous Catalysts
Ziegler-Natta Catalysts in Polyolefi n Synthesis
Chromium Polymerization Catalysts: Still Alive in Polyethylene Production
Polymer Particle Growth and Process Engineering Aspects
Heterogeneous Polymerization with Supported Catalysts versus Polymerization in Homogeneous Phase
Phenomena in Polymerization with Heterogeneous Catalysts
Polymerization Processes and Reactors for Polymerization with Heterogeneous Catalysts
Requirements for Polymerization Catalysts
Methylaluminoxane (MAO), Silica and a Complex: The "Holy Trinity" of Supported Single-site Catalyst
Introduction
Basic Ingredients
Catalyst Preparations
Pitfalls in the Generation of Single-Site Polymer Material
Conclusions
Perfl uoroaryl Group 13 Activated Catalysts on Inorganic Oxides
Introduction
Supported Perfl uoroarylborate Catalysts
Supported Perfl uoroarylborane and Perfl uoroarylalane Catalysts
Conclusions
Catalysts Supported on Magnesium Chloride
Introduction
Magnesium Chloride as Activator
Magnesium Chloride/Methylaluminoxane
Magnesium Chloride/Borate
Magnesium Chloride/Aluminum Alkyl
Conclusions
Metallocene Activation by Solid Acids
Introduction
Experimental
Results and Discussion
Metallocene Choice
Participation by Aluminum Alkyl
Bronsted versus Lewis Acidity
Polymer Molecular Weight Distribution
Leaching of the Metallocene
Characterization of Active Sites
Clay as an Activator
Zeolites as Metallocene Activators
Conclusions
Supported Multicomponent Single-Site ¿-Olefin Polymerization Catalysts
Introduction
Supported Catalysts for Concurrent Tandem Oligomerization/Copolymerization
Concurrent Tandem Catalysis for Increased Levels of Long-Chain Branching (LCB)
Supported Multicomponent Catalysts for Bimodal/Multimodal MMD Polyethylene
Multicomponent Catalysts for Polypropylene
Multicomponent Catalysts for Block Copolymers
Conclusions
Tethering Olefi n Polymerization Catalysts and Cocatalysts to Inorganic Oxides
Introduction
Surface-Tethered Precatalysts
Tethering Cocatalysts
Molecular Models
Conclusions
Polymerization with the Single-Site Catalyst Confi ned within the Nanospace of Mesoporous Materials or Clays
Introduction
Single-Site Catalyst Confi ned within the Nanopores of Mesoporous Materials
Single-Site Catalyst Confi ned within the Nanogalleries of Mineral Clays
Summary
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