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Photoregulation of Luminescence Quenching in Photochromic Porphyrin–Phenoxynaphthacene‐ quinone Copolymers
Author(s) -
Myles A. J.,
Gorodetsky B.,
R. Branda N.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200306227
Subject(s) - photochromism , photochemistry , materials science , copolymer , porphyrin , quenching (fluorescence) , photoinduced electron transfer , polymerization , fluorescence , polymer , electron transfer , luminescence , optoelectronics , chemistry , optics , physics , composite material
Fluorescence is reversibly photoregulated in high‐density random copolymers constructed from photochromic phenoxynaphthacenequinones and porphyrins (see Figure) using ring‐opening metathesis polymerization. Alternating irradiation of the polymers with ultraviolet and visible light toggles the photochromic components between two isomers differing in their ability to act as electron‐acceptors in a photoinduced electron‐transfer process.