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Phosphine oxide-functionalized polyfluorene derivatives:Synthesis,photophysics,electrochemical properties,and electroluminescence performance

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Science China Chemistry 2011年第4期54卷 678-684页

作者： LIU DeAng GIBSON Gary BRUG James LAM Sity MAO Samuel S Lawrence Berkeley National Laboratory and Department of Mechanical Engineering University of CaliforniaBerkeleyCAUSA Information Surfaces Lab Hewlett Packard LabsHewlett Packard Company1501 Page Mill RoadPalo AltoCA 94304USA

A series of phosphine oxide-functionalized polyfluorene derivatives,PFH-PO-40-1 (P1),PFH-PO-20-1 (P2),PFH-PO-10-1 (P3),and PFH-PO-1-1 (P4),were prepared via a palladium-mediated Suzuki cross-coupling *** structures and purities of all polymers were fully characterized by 1H and 13C NMR,UV-vis and photoluminescent spectroscopy,gel permeation chromatography,and TGA/*** emission features showed single broad peaks at about 445 nm in film,compared with those in dilute solutions,which might be caused by some degree of aggregation in the excited states of the *** best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).

关键词： organic light-emitting diodes polyfluorene derivatives electroluminescence

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

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Chinese Journal of Polymer Science 2016年第2期34卷 229-241页

作者： Hui Zhang Ge Zhang 徐景坤文阳平 Wan-chuan Ding Jie Zhang Shou-li Ming Shi-jie Zhen Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal UniversityNanchang 330013China Key Laboratory of Applied Chemistry Jiangxi Agricultural UniversityNanchang 330045China

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 Fe^3＋, Cu^2＋ and Cr2O7^2-, respectively. In addition, P9FG as a turn-off ultraviolet sensor could realize the detection of Cu^2＋ while as turn-on ultraviolet sensors could also realize the determination of Fe^3＋ and Cr2072-, respectively. All results indicate that P9FG is a promising candidate for optical sensing.

关键词： Conjugated polymers polyfluorene derivatives Electropolymerization Optical sensors Metal ions.

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