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Synthesis and Fluorescence Resonance Energy Transfer Properties of an Alternating Donor–Acceptor Copolymer Featuring Orthogonally Arrayed Transition Dipoles along the Polymer Backbone

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journal contribution
posted on 20.02.2016, 09:00 by Soichiro Ogi, Kazunori Sugiyasu, Masayuki Takeuchi
We have synthesized a new entity of polymer structures composed of π-conjugated molecules: alternating donor–acceptor (D–A) copolymers featuring orthogonally arrayed transition dipoles along the polymer backbone. Such a unique structure could lead to novel functional fluorescent materials; therefore, we examined fluorescence resonance energy transfer (FRET) properties of the D–A copolymers using absorption, fluorescence, and fluorescence lifetime measurements based on the principle of FRET. The results suggested that the orthogonal and alternating D–A copolymer could potentially lead to a new FRET system in which the efficiency is sensitive to the polymer conformation.