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Living polymers and mechanisms of anionic polymerization

  • Michael Szwarc
Chapter
Part of the Advances in Polymer Science book series (POLYMER, volume 49)

Abstract

Following a short introduction and a brief discussion of thermodynamics of propagation, the kinetics and mechanisms of anionic polymerization are reviewed. The systems involving living polymers, a term introduced by this writer, are discussed in greater detail because the existence of various ionic species participating in polymerization was clearly revealed by their studies. Indeed, a large part of this review is concerned with the methods used in identification of these species and determination of their role in various polymerizing systems. The results of such studies are compared with those derived from investigations of radical-anions, carbanions and other ionic species.

Initiation and propagation of anionic polymerization are treated separately. Both homogeneous and heterogeneous initiation processes are discussed, including systems involving electron-transfer processes, zwitter ions, charge-transfer complexes, etc. Special attention is paid to lithium alkyl initiators in view of their complexity. The effects exerted upon the rate and stereo-chemistry of propagation by the nature of counter-ions, aggregation, solvents and solvating agents, temperature, pressure, etc., are thoroughly discussed.

Keywords

Molecular Weight Distribution Propagation Constant Anionic Polymerization Cesium Salt Living Polymer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • Michael Szwarc
    • 1
  1. 1.Dept. of ChemistryNew York State College of Environmental ScienceSyracuseUSA

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