Polymerization Using Phosphazene Bases

Abstract
In the recent rise of metal-free polymerization techniques, organic phosphazene superbases have shown their remarkable strength as promoter/catalyst for the anionic polymerization of various types of monomers. Generally, the complexation of phosphazene base with the counterion (proton or lithium cation) significantly improves the nucleophilicity of the initiator/chain end resulting in highly enhanced polymerization rates, as compared with conventional metalbased initiating systems. In this chapter, the general features of phosphazenepromoted/catalyzed polymerizations and the applications in macromolecular engineering (synthesis of functionalized polymers, block copolymers, and macromolecular architectures) are discussed with challenges and perspectives being pointed out.

Citation
Zhao J, Hadjichristidis N, Schlaad H (2015) Polymerization Using Phosphazene Bases. Anionic Polymerization: 429–449. Available: http://dx.doi.org/10.1007/978-4-431-54186-8_9.

Publisher
Springer Nature

Journal
Anionic Polymerization

DOI
10.1007/978-4-431-54186-8_9

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