9-Ethynyl-9-hydroxyanthrone,a terminal alkynol anthraquinone derivative,was synthesized from anthraquinone.Its structure has been confirmed by 1HNMR,IR,LC-MS and elemental analysis.The melting point and fluorescence spectra of 9-ethynyl-9-hydroxyanthrone have been obtained by the DSC and the Waters 474 fluorescence detector,respectively.Furthermore,the fluorescence quenching response of 2,4,6-trinitrotoluene(TNT) and 1,3,5,7-tetranitro-1,3,5,7-tetrazoctane(HMX) to 9-enthynyl-9-hydroxyanthrone was investigated.The test results showed that the maximum excitation wavelength and emission wavelength were estimated at 1.1 mmol/L of 9-ethynyl-9-hydroxyanthrone in chloroform,i.e.376 nm and 443 nm,respectively.The high fluorescence response of 2,4,6-trinitrotoluene and 1,3,5,7-tetranitro-1,3,5,7-tetrazoctane to 9-ethynyl-9-hydroxyanthrone was identified,which also indicated that 9-ethynyl-9-hydroxyanthrone could be used as a sensing material for detecting explosives.It may be concluded that this kind of fluorescence compounds have potential application prospects in explosives detection.

The preparation of monodispersed nano-SiO2 by sol-gel method used widely in resent years,because of its merits,such as particle size controlled easily,dispersed well in solutions and so on.As its large surface area,nano-SiO2 may reunite.So we can use surface chemical modification method to improve dispersions and applications of nano-silica.Moreover,the preparation of nano-sized SiO2 micropheres using sol-gel method,the surface chemical modification and shear-thickening(STF) effects were reviewed detail.

PANI/Vinyl composites were prepared through in-situ emulsion polymerization in water,using DBSA as emulsifier and doping agent,APS as reaction initiator.The PANI/Vinyl composites were characterized by SEM,FT-IR,TG and XPS.The results showed that composites nanoparticles were in the range of 70nm to 110nm,and the performance of antistatic performance and film forming were good.

芳香多环共轭化合物分子多呈现平面结构,该类化合物大多具有荧光效应.当富电子的荧光共轭化合物与缺电子多硝基化合物接触时,荧光会发生猝灭.利用硝基化合物对荧光共轭化合物的荧光猝灭性质,可用于炸药的检测.

There are many kinds of explosives, and their detection methods vary. Nitroaromatic compound is one of the composition of the explosives commonly used. The fluorescence will be quenched when they touch the fluorescent conjugated polymers. General methods for explosives detection have been summarized in this paper, in addition the application of novel fluorescence analysis technique in explosives detection has been introduced. Fluorescent conjugated polymer as chemical sensing material for explosive detection has been reviewed in detail, also a novel fluorescent sensing film self-assembled by fluorescent small molecule pyrene and homogeneous fluoroimmunoassay have been presented briefly. The development of fluorescence analysis used in the area of determining explosives has been prospected.