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论文类型：期刊论文

发表时间：2012-11-14

发表刊物：MACROMOLECULAR CHEMISTRY AND PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：213

期号：21

页面范围：2282-2286

ISSN号：1022-1352

关键字：cationic ring-opening polymerization; photocatalysts; photoinitiators; Pt(II) complexes; silyl radicals

摘要：A household halogen lamp is used to promote the ring-opening photopolymerization of epoxides in the presence of coumarin moiety containing Pt(II) complex/silane/iodonium salt combinations (epoxide/acrylate interpenetrated polymer networks can also be synthesized). Excellent polymerization profiles are obtained (conversions >70%) under this selected very soft irradiation. These Pt(II) complexes behave as photocatalysts in an oxidative cycle. A photoluminescent polymer can be in situ synthesized thanks to the luminescence properties of these complexes. The mechanisms are investigated by ESR, laser flash photolysis, and luminescence experiments.