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Celluloses Grafted with Fluorene-Benzene and Carbazole-Benzene Copolymer and Its Application to the Detection of Nitro-Aromatic
Author(s): 
Pages: 251-259
Year: Issue:  4
Journal: Imaging Science and Photochemistry

Keyword:  硝基芳烃链聚集接枝荧光猝灭;
Abstract: 采用Suzuki偶联反应将合成的芴-苯和咔唑-苯共聚物接枝到经化学改性的纸纤维素上,制备了可用于硝基芳烃检测的传感纸纤维素.荧光猝灭研究显示,由于两种传感纸纤维素具有的大比表面积和孔道结构有利于2,4-二硝基甲苯(DNT)蒸气分子的快速扩散,因此二者比薄膜态具有更高的荧光猝灭效率.荧光猝灭的可逆性研究显示,两种传感纤维素经过四次猝灭-恢复循环后,对DNT气态分子依然具有较高的猝灭效率,表明制备的纸...
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