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Towards a Living Radical Polymerization of Styrene by Using Dithiolactone as a New Type of Mediating Agent

✍ Scribed by J. Guillermo Soriano-Moro; Julio C. Rico-Valverde; Francisco J. Enriquez-Medrano; Hortensia Maldonado-Textle; Eduardo Vivaldo-Lima; Ricardo Acosta-Ortiz; Ramiro Guerrero-Santos

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 188 KB
Volume: 29
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200700603

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✦ Synopsis

Abstract

In this communication, γ‐phenyl‐γ‐butyrodithiolactone (DTL1) is presented as the first example of a new type of control agent. The styrene polymerization carried out at 60 °C in the presence of DTL1 exhibits living characteristics, without consuming DTL1 during the process. This unprecedented behavior was explained by a mechanism based on the reversible formation of a persistent radical adduct between the DTL1 and the polystyrene macroradicals.

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