Electrosynthesis,characterization and optical sensing application of amino acid functionalized polyfluorene |
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| Authors: | Hui Zhang Ge Zhang Jing-kun Xu Yang-ping Wen Wan-chuan Ding Jie Zhang Shou-li Ming Shi-jie Zhen |
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| Institution: | 1. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University,Nanchang 330013, China;Key Laboratory of Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, China;2. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University,Nanchang 330013, China;3. Key Laboratory of Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, China |
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| Abstract: | An amino acid side chain functionalized polyfluorene derivative polyN-(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 P9 FG. Fluorescent spectra indicated that P9 FG was a good blue light emitting material that could be employed as optical sensors. The soluble P9 FG as a turn-off fluorescent sensor could realize the detection of Fe3+, Cu2+ and Cr2O72?, respectively. In addition, P9 FG 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 P9 FG is a promising candidate for optical sensing. |
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| Keywords: | Conjugated polymers Polyfluorene derivatives Electropolymerization Optical sensors Metal ions |
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