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论文类型：期刊论文

发表时间：2012-06-21

发表刊物：POLYMER

收录刊物：SCIE、EI

卷号：53

期号：14

页面范围：2803-2808

ISSN号：0032-3861

关键字：Iridium (III) complexes (IrCs); Household LED bulbs; Household halogen lamp

摘要：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.