Volume 129, Issue 4 pp. 1763-1772
Article

Fluorene-based conjugated polymer with tethered thymines: click postpolymerization synthesis and optical response to mercury(II)

Yanli Lei

Yanli Lei

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Search for more papers by this author
Fudong Ma

Fudong Ma

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Search for more papers by this author
Yong Tian

Yong Tian

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Search for more papers by this author
Qiaoli Niu

Qiaoli Niu

Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou 510631, People's Republic of China

Search for more papers by this author
Hongyu Mi

Hongyu Mi

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Search for more papers by this author
Ismayil Nurulla

Ismayil Nurulla

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Search for more papers by this author
Wei Shi

Corresponding Author

Wei Shi

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, People's Republic of China

Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China===Search for more papers by this author
First published: 22 December 2012
Citations: 10

Abstract

A kind of fluorene-based conjugated polymer with tethered thymine (T) groups {poly[(9,9-dioctyl)-2,7-fluorene-{9,9-dioctyl-4–1,2,3-triazol-[5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1H,3H)-dione}-2,7-fluorene]-co-[(9,9-dioctyl)-2,7-fluorene-4,7-bis(5-thiophen-2-yl)benzo-2,1,3-thiadiazole] (P-3)} was successfully synthesized by a Cu(I)-catalyzed click reaction between the acetylene-substituted polymer precursor {poly[(9,9-dioctyl)-2,7-fluorene-(9,9-dioctyl-4-phenylacetylene fluorene)]-co-[(9,9-dioctyl)-2,7-fluorene-4,7-bis(5-thiophen-2-yl)benzo-2,1,3-thiadiazole]} and 3′-azido-3′-deoxythymidine. The chemical structures of the intermediates and target polymer were verified by Fourier transform infrared spectroscopy and 1H-NMR analyses. The specific binding with Hg2+ of P-3 was corroborated by ultraviolet–visible spectroscopy and photoluminescence analyses against other metal ions. The results show that P-3 possessed selectivity and sensitivity toward Hg2+. Around 77% of photoluminescence intensity of P-3 was quenched when the concentration of Hg2+ reached 7.7 × 10−4 M and with a detection limit in the range of about 4.8 μM. A comparison experiment suggested that a synergic effect of the tethered T and S atoms interrelated with Hg2+ existed in P-3. Most of the fluorescence intensity of P-3 was recovered upon the addition of iodide anions to the P-3/Hg2+ complex; this suggested that P-3 could be used as a potential reversible optical Hg2+ probe. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.