中文摘要：

一张强壮的氢契约酸(HBA ) 聚合物线性 fluoroalcoholic polysiloxane (PLF ) ，由一步舞 hydrosilylation 综合了，为 2,4-dinitrotoluene (2,4-DNT ) 被介绍察觉使用表面声学的波浪(锯) 设备。英尺红外系列并且 < 啜 class= “ a-plus-plus ” > 1 H NMR 系列描述证实了它的分子的结构。然后， PLF 在氯仿，和到上涂的水花被溶解一 434 ? MHz 锯设备。并且随后，制作传感器的敏感和选择基于一个锯测试平台被学习。到 1 的 2,4-DNT ? ppm 并且 100 ? ppb (为 DNT， 1 ? ppm ?=? 8.1 ? mg/m < 啜 class= “ a-plus-plus ” > 3 ；1 ? ppb ?=? 8.1 ? g/m < 啜 class= “ a-plus-plus ” > 3 ), 传感器的回答升起了 7.7 和 1.5 ? kHz 分别地。而且，与在 10 点的一些普通干扰蒸汽相比 ? mg/m < 啜 class= “ a-plus-plus ” > 3 , 到在 1 点的 2,4-DNT 的传感器的反应 ? ppm 强壮 5 倍。敏感性质被归因于在在 PLF 和基本孤独的电子的组在 2,4-DNT nitro 组配对的 hexafluoroisopropanol (HFIP ) 之间的氢契约相互作用。在 PLF 传感器和氢氧根组 functionalized 聚合物(carbowax 和 MOBCD ) 之间的比较涂的传感器被调查，并且结果证明 PLF 传感器展出了更好的敏感。简言之， PLF 传感器展出了快反应，可以忽略的基线飘移和优秀可逆性，显示 HFIP 的好候选人组织为实际 nitroaromatic 炸药察觉的 functionalized HBA 聚合物。

英文摘要：

A strong hydrogen-bond acidic （HBA） polymer linear fluoroalcoholic polysiloxane （PLF）, synthesized by one-step hydrosilylation, was introduced for 2,4-dinitrotoluene （2,4-DNT） detection using surface acoustic wave （SAW） devices. FT-IR spectra and 1H NMR spectra char- acterizations confirmed its molecular structure. Then, PLF was dissolved in chloroform, and spray coated onto a 434 MHz SAW device. And subsequently, the sensitivity and selectivity of the fabricated sensor were studied based on a SAW test platform. To 2,4-DNT of 1 ppm and 100 ppb （for DNT, 1 ppm = 8.1 mg/m3; 1 ppb = 8.1 ;tg/m3）, the responses of the sensor rose 7.7 and 1.5 kHz, respectively. Furthermore, compared with some common interference vapors at 10 mg/m3, the response of the sensor to 2,4-DNT at 1 ppm was 5 times stronger. The sensitive property was attributed to the hydrogen bond interaction between the hexafluoroisopropanol （HFIP） group in PLF and the basic lone electron pairs of nitro-groups in 2,4-DNT. Comparison between the PLF sensor and hydroxyl group functionalized polymer （carbowax and MOBCD）-coated sensors was investigated, and the results showed that the PLF sensor exhibited better sensitivity. In a word, the PLF sensor exhibited fast response, negligible baseline drifts and excellent reversibility, indicating good candidates of HFIP group functionalized HBA polymers for practical nitroaromatic explosives detection.