Citation: Hui Zhang, Ge Zhang, Jing-kun Xu, Yang-ping Wen, Wan-chuan Ding, Jie Zhang, Shou-li Ming, Shi-jie Zhen. Electrosynthesis, Characterization and Optical Sensing Application of Amino Acid Functionalized Polyfluorene[J]. Chinese Journal of Polymer Science, ;2016, 34(2): 229-241. doi: 10.1007/s10118-016-1742-3 shu

Electrosynthesis, Characterization and Optical Sensing Application of Amino Acid Functionalized Polyfluorene

Hui Zhang ^1,2,3 ,
Ge Zhang ⁴ ,
Jing-kun Xu ⁴ ,
Yang-ping Wen ⁵ ,
Wan-chuan Ding ^1,2,3 ,
Jie Zhang ^1,2,3 ,
Shou-li Ming ⁴ ,
Shi-jie Zhen ⁴

1.
1. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
2.
2. Key Laboratory of Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, China
3.
4.
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
5.
Key Laboratory of Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, China

Received Date: 15 August 2015
Revised Date: 10 September 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 51203070 and 51303073), Ganpo Outstanding Talents 555 projects (2013), the Jiangxi Provincial Department of Education (Nos. GJJ12595 and GJJ14301), Jiangxi Science Technology Normal University Innovation Fund of Postgraduates (No. YC2014-X10).

An amino acid side chain functionalized polyfluorene derivative poly[N-(9-fluorenylmethoxycarbonyl)-glycine] (P9FG) was facilely electrosynthesized and characterized, and the structure, properties and optical sensing application of the obtained polymer were described and discussed. The electropolymerization occurred at C2 and C7 positions of fluorene units, and amino acid side chain groups were not cleaved from polyfluorene backbone in mixed electrolytes of boron trifluoride diethyl etherate and dichloromethane. Thermal analysis demonstrated good thermal stability of P9FG. Fluorescent spectra indicated that P9FG was a good blue light emitting material that could be employed as optical sensors. The soluble P9FG as a turn-off fluorescent sensor could realize the detection of Fe3+, Cu2+ and Cr2O72-, respectively. In addition, P9FG as a turn-off ultraviolet sensor could realize the detection of Cu2+ while as turn-on ultraviolet sensors could also realize the determination of Fe3+ and Cr2O72-, respectively. All results indicate that P9FG is a promising candidate for optical sensing.
- Conjugated polymers,
- Polyfluorene derivatives,
- Electropolymerization,
- Optical sensors,
- Metal ions
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