Cyclometallated Pt(II) Complexes in Visible‐Light Photoredox Catalysis: New Polymerization Initiating Systems | Zendy

Tehfe MohamadAli | Zendy; Ma Lihua | Zendy; Graff Bernadette | Zendy; MorletSavary Fabrice | Zendy; Fouassier JeanPierre | Zendy; Zhao Jianzhang | Zendy; Lalevée Jacques | Zendy

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Cyclometallated Pt(II) Complexes in Visible‐Light Photoredox Catalysis: New Polymerization Initiating Systems

Author(s) -

Tehfe MohamadAli,

Ma Lihua,

Graff Bernadette,

MorletSavary Fabrice,

Fouassier JeanPierre,

Zhao Jianzhang,

Lalevée Jacques

Publication year - 2012

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.201200489

Subject(s) - photopolymer , photochemistry , polymerization , chemistry , luminescence , polymer chemistry , moiety , acrylate , photoredox catalysis , polymer , hydrosilylation , flash photolysis , epoxide , materials science , catalysis , copolymer , photocatalysis , organic chemistry , kinetics , physics , optoelectronics , quantum mechanics , reaction rate constant

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.

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