| 硝基苯衍生物结构与其淬灭聚(2,5-二戊氧基对亚苯基亚乙炔基)荧光效率的关系 |
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| 引用本文： | 徐宏丽,佟斌,石建兵,刘晹,田旭玲,支俊格,董宇平,唐本忠.硝基苯衍生物结构与其淬灭聚(2,5-二戊氧基对亚苯基亚乙炔基)荧光效率的关系[J].高分子学报,2007,0(3):293-296. |
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| 作者姓名： | 徐宏丽 佟斌 石建兵 刘晹 田旭玲 支俊格 董宇平 唐本忠 |
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| 作者单位： | 北京理工大学材料科学与工程学院,北京,100081;北京理工大学理学院,北京,100081;香港科技大学化学系,香港 |
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| 摘 要： | 聚对亚苯基亚乙炔基(polyphenyleneethynylenes,PPEs)、聚噻吩(PTs)等作为具有共轭结构的电荷给体,在与含硝基、氰基等电荷受体发生电荷转移络合作用时,其荧光强度会随电荷受体结构的不同而产生不同程度的淬灭,而且响应灵敏度明显高于一般荧光小分子化合物1~4].这是因为荧光小
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| 关 键 词： | 聚对亚苯基亚乙炔基 硝基苯衍生物 荧光淬灭 |
| 收稿时间： | 2006-05-31 |
| 修稿时间： | 2006-07-27 |
THE RELATION BETWEEN THE STRUCTURE OF NITROBENZENE DERIVATIVES AND FLUORESCENCE QUENCHING EFFICIENCY TO THE POLY(2,5-DIPENTYLOXY-para-PHENYLENE ETHYNYLENE) |
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| XU Hongli,TONG Bin,SHI Jianbing,LIU Yang,TIAN Xuling,ZHI Junge,DONG Yuping,LAM Jacky Wing Yip,TANG Benzhong.THE RELATION BETWEEN THE STRUCTURE OF NITROBENZENE DERIVATIVES AND FLUORESCENCE QUENCHING EFFICIENCY TO THE POLY(2,5-DIPENTYLOXY-para-PHENYLENE ETHYNYLENE)[J].Acta Polymerica Sinica,2007,0(3):293-296. |
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| Authors: | XU Hongli TONG Bin SHI Jianbing LIU Yang TIAN Xuling ZHI Junge DONG Yuping LAM Jacky Wing Yip TANG Benzhong |
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| Institution: | 1.College of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,2.College of Science,Beijing Institute of Technology,Beijing 100081,3.Department of Chemistry,Hong Kong University of Science and Technology,Hong Kong |
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| Abstract: | The poly(2,5-dipentyloxy-para-phenylene ethynylene)(P) was synthesized by Pd-catalyzed Sonogashira coupling reaction.Due to causing energy transfer between the nitrobenzene's quenchers and the polymer chains through the charge-transfer interaction,the fluorescence quenched properties of P varied obviously with the para-substituting group's structure in the nitrobenzene derivatives.The fluorescence quenching efficiency of quenchers improved with increasing of electron repulsion capability of the para-substituting group.The fluorescence quenching efficiency increased nonlinearly with the concentration of the quenchers and had,however,no relation with the quenching time. |
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| Keywords: | Polyphenylene ethynylene Nitrobenzene derivative Fluorescence quenching |
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