Cationic polymerization of isobutylene at room temperature

Authors

  • Sergei V. Kostjuk,

    1. Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220030 Minsk, Belarus
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  • Hui Yee Yeong,

    1. Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
    2. Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
    Current affiliation:
    1. BASF Coatings GmbH, Muenster, Germany
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  • Brigitte Voit

    Corresponding author
    1. Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
    2. Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
    • Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
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Abstract

This review highlights recent approaches toward polyisobutylene (PIB) by an energy efficient room temperature cationic polymerization. Special focus is laid on our own work using modified Lewis acids and nitrile-ligated metal complexes associated with weakly coordinating anions. In both cases, suitable conditions have been found for efficient production of PIB characterized by medium to low molar masses and a high content of exo double bonds as end groups—the typical features of highly reactive PIB, an important commercial intermediate toward oil and gasoline additives. These and other approaches demonstrate that the cationic polymerization of isobutylene is still not fully explored, and new innovative catalyst systems can lead to surprising results of high commercial interest. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013

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