| 聚对苯乙烯撑型超支化共轭聚合物的合成及荧光淬灭研究 |
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| 引用本文： | 钱乙,徐凯恺,刘峰,胡军,刘洪来.聚对苯乙烯撑型超支化共轭聚合物的合成及荧光淬灭研究[J].复旦学报(自然科学版),2008,47(4). |
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| 作者姓名： | 钱乙 徐凯恺 刘峰 胡军 刘洪来 |
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| 作者单位： | 1. 华东理工大学,材料科学与工程学院,上海,200237
2. 华东理工大学,化学系,国家,化学工程重点实验室,上海,200237 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金，上海市自然科学基金 |
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| 摘 要： | 通过Heck缩聚反应合成了2种以三苯胺为核的"A2 B3"聚对苯乙烯撑型超支化共轭聚合物.通过FT-IR,1HNMR,GPC和TGA等测试对聚合物进行了表征.此类超支化聚合物具有良好的溶解性和热稳定性.通过紫外吸收光谱,荧光发射光谱表征了聚合物的光化学性能,并首次对含硝基芳香烃淬灭其溶液荧光的能力进行了初步研究.此类聚合物不仅合成较为容易,检测的灵敏度也较高,是一类潜在的检测含硝基芳香烃爆炸物的荧光传感器材料.
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| 关 键 词： | 超支化聚合物 Heck缩聚 含硝基芳香烃 荧光淬灭 |
Synthesis and Fluorescence Quenching Properties of PPV-like Hyperbranched Conjugated Polymer |
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| QIAN Yi,XU Kai-kai,LIU Feng,HU Jun,LIU Hong-Lai.Synthesis and Fluorescence Quenching Properties of PPV-like Hyperbranched Conjugated Polymer[J].Journal of Fudan University(Natural Science),2008,47(4). |
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| Authors: | QIAN Yi XU Kai-kai LIU Feng HU Jun LIU Hong-Lai |
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| Abstract: | Two new PPV-like hyperbranched conjugated polymers with triphenylamine as the core were synthesized through Heck condensation reaction.The polymers were characterized by FT-IR,1H NMR,GPC and TGA.The polymers have good solubility and thermal stability.The photochemical properties of polymers were revealed by UV and PL spectra and the fluorescence quenching properties of polymers toward nitro-aromatic compounds were first studied.Such polymers are easy to be synthesized and have good quenching sensitivity.It indicates that they have the potential to be used as fluorescence sensing material for detecting nitro-aromatic explosives. |
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| Keywords: | hyperbranched polymer Heck condensation nitro-aromatic compounds fluorescence quenching |
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