Indexed by:期刊论文

Date of Publication:2012-06-21

Journal:POLYMER

Included Journals:SCIE、EI

Volume:53

Issue:14

Page Number:2803-2808

ISSN No.:0032-3861

Key Words:Iridium (III) complexes (IrCs); Household LED bulbs; Household halogen lamp

Abstract:Household LED bulbs and halogen lamps are used to promote the ring-opening photopolymerization of epoxides in the presence of a new series of iridium(III) complexes (IrCs) exhibiting enhanced visible light absorption properties through the introduction of a coumarin moiety. These latter complexes are used as catalyst photoinitiators in an oxidative cycle in combination with a silane and an iodonium salt. Remarkably, even under the selected very soft irradiations (e.g. light intensity lower than 2 mW/cm(2)), excellent polymerization profiles are obtained (conversions > 80%). The mechanisms are investigated by ESR and luminescence experiments. (C) 2012 Elsevier Ltd. All rights reserved.