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Unprecedented Multicolor Photoluminescence from Hyperbranched Poly(amino ester)s
Author(s) -
Yuan Luyao,
Yan Hongxia,
Bai Lihua,
Bai Tian,
Zhao Yan,
Wang Lianlian,
Feng Yuanbo
Publication year - 2019
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201800658
Subject(s) - photoluminescence , cyan , fluorescence , amine gas treating , conjugated system , materials science , photochemistry , condensation polymer , ion , polymer chemistry , polymer , chemistry , organic chemistry , optoelectronics , optics , physics , composite material
A novel kind of water‐soluble fluorescent hyperbranched poly(amino ester) (PAE) is prepared through a one‐pot polycondensation reaction of citric acid (CA) and N ‐methyldiethanolamine (NMDEA). The PAE exhibits enhanced and red‐shift fluorescence with increasing solution concentration, showing distinct aggregation‐induced emission character. Interestingly, the resulting PAE exhibits tunable photoluminescence from blue, cyan, and green to red irradiated by altering the excitation wavelengths. Such unique emission of non‐conjugated PAE is attributed to the clustering of ester and tertiary amine groups derived from PAE self‐assembly aggregates. Moreover, the fluorescence of PAE is very sensitive to Fe 3+ ions. The facile preparation and unique optical features make PAE potentially useful in numerous applications such as multicolor cellular imaging, Fe 3+ ions probe, and light‐emitting diodes.