A Novel Photopolymerization Initiating System Based on an Iridium Complex Photocatalyst

✍ Scribed by Jacques Lalevée; Nicolas Blanchard; Mohamad-Ali Tehfe; Mathieu Peter; Fabrice Morlet-Savary; Jean Pierre Fouassier

• Book ID: 102497614
• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 400 KB
• Volume: 32
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.201100098

✦ Synopsis

Abstract

The use of a photocatalyst (tris(2‐phenylpyridine)iridium [Ir(ppy)~3~]) being able to generate both radicals and cations to initiate free radical polymerization and ring opening polymerization is presented. Remarkably, under soft irradiations (fluorescence bulb, sunlight), excellent cationic polymerization profiles and final conversions are obtained. The involved mechanisms are investigated by ESR experiments. magnified image