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Synthesis, characterization and photophysical properties of novel fluorene-based copolymer with pendent urea group: Fluorescent response for anions through H-bonding interaction by Linna Zhu; Chuluo Yang; Wenjun Zhang; Jingui Qin is a Materials Science article available to read on EtoBox.

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A novel fluorene-based copolymer P 1 with diphenyl urea as pendent group, as well as its analogous copolymer P 2 without urea group for comparison, were synthesized by Suzuki-coupling reaction, and characterized by 1 H NMR, EA, IR and GPC. The polymers were brightly blue emissive in THF, DMF, or DMSO solution. Anion titration experiments carried out in THF indicate that the polymer P 1 has good selectivity for fluoride ion, acetate ion, and dihydrogen phosphate ion, and the sensitivity and selectivity of P 1 toward these anions come from the strong hydrogen-bond interaction between the anions and the urea group of the copolymer. This new system utilizing the strong luminescence property of the polyfluorene as reporter and the hydrogen-bond-forming ability of urea group may act as novel effective anions receptor and chemosensor.

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Author

Linna Zhu; Chuluo Yang; Wenjun Zhang; Jingui Qin

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-3861)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)