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Poly(Schiff's bases)–bifluorophores: Synthesis, photophysical properties, nonradiational transfer of energy of electronic excitation
Author(s) -
Siling S. A.,
Shamahin S. V.,
Ronova I. A.,
Kovalevski A. Yu.,
Grachev A. B.,
Tsiganova I. Yu.,
Yuzhakov V. I.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010418)80:3<398::aid-app1112>3.0.co;2-0
Subject(s) - fluorophore , polymer , acceptor , fluorescence , excitation , materials science , energy transfer , polymer chemistry , photochemistry , chemistry , chemical physics , physics , optics , composite material , condensed matter physics , quantum mechanics
A method of the synthesis of a new generation of polymers with intrinsic fluorescence—poly(Shiff's bases)–bifluorophores—was developed. These polymers contain two different fluorophores in each unit of the main polymer chain. One of the fluorescent fragments is a donor of electron excitation energy and the second one is an acceptor. The photophysical properties of poly(Shiff's bases)–bifluorophores were investigated. It was shown that in poly(Shiff's bases)–bifluorophores nonradiation energy transfer along the polymer chain in the solid and liquid solutions of polymers takes place. The influence of the disposition of fluorophores in the polymer chain and the distance between them on nonradiation energy transfer were investigated. It was shown that the maximum nonradiation energy transfer is realized in polymers–bifluorophores with a statistical distribution of the fluorophore fragment in the polymer chain. The influence of the distance between a donor and an acceptor of the electron excitation energy on the nonradiation energy transfer was investigated. It was established that nonradiation energy transfer is not observed if the distance between a donor and an acceptor of energy exceeds 10 nm. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 398–406, 2001