A hydrogen bond acidic small molecule,bis[3,5-bis(2-hydroxyhexafluoroisopropyl)phenpiopyl] bis [ 4,6,8-tri [ 3,5-bis ( 2-hydroxyhexafluoroisopropyl) ]-2-naphthylmethyl ] silane ( HPNMS), is synthesized as sensitive material for nerve agents detection. Starting from dichlorosilane,2-( Bromomethyl)naphthalene,activated zinc and Allylbenzene, bis [ phenpropyl ] bis } 2-naphthyhnethyl silane is synthesized by Grignard reaction, hydrosilylation reaction and Reformatsky reaction. The intermediate product is functionalized by hexafluoroacetone ( HFlP)to produce the target material HPNMS. The sensitive material is evaluated as adsorbent coatings for nerve agent simulant DMMP on a SAW sensor. The result shows that the frequency shifts are linear to DMMP volume fraction in range of(30~170) ×10-6 with a sensitivity of 266 Hz/10-6 for a thicker film. Fast response,fully desorption and good selectivity against acetone,toluene etc interferences are achieved.%合成了一种氢键酸性小分子神经毒气敏感材料.以二氯硅烷、2-溴甲基萘、活化锌粉、丙烯基苯为起始原料,通过格氏反应、硅氢加成,制备得到二(苯丙基)-二[(2-萘基)甲基]硅烷,然后用六氟异丙醇进行取代,得到二[3,5-双(2-羟基六氟异丙基)苯丙基]-二{(4,6,8-三[3,5-双(2-羟基六氟异丙基)]-2-萘基)甲基}硅烷(HPNMS).将HPNMS涂覆在声表面波(SAW)传感器上,研究了其对神经毒剂模拟剂甲基膦酸二甲酯(DMMP)的气敏特性.结果表明:在(30～170)×10-6的气体体积分数范围内,SAW传感器的响应值与DMMP的含量呈线性关系,对于较厚的敏感膜灵敏度可达266 Hz/10-6.且响应迅速,解吸彻底,对甲苯、丙酮等干扰气体也具有良好的选择性.
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