新型有机磷毒剂敏感材料的制备及气敏特性研究  

The synthesis and gas sensitive properties of a new polysiloxane material to organophosphate vapor

作　　者：刘忠祥[1] 杜晓松[1] 蒋亚东[1] 胡佳[1] 谢光忠[1] 应智花[1] 何为[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《功能材料》2008年第2期279-281,共3页Journal of Functional Materials

基　　金：国家自然科学基金杰出青年基金资助项目(60425101)

摘　　要：以苯酚、溴丙烯、无水碳酸钾为起始原料通过O-烷化、Claisen重排制得邻烯丙基苯酚，使其和含氢硅油通过硅氢加成制得有机磷敏感材料聚甲基[3-（2-羟基）苯基]丙基硅氧烷（PMPS）。将PMPS涂覆在石英晶体微天平（QCM）上，研究了其对神经性毒剂模拟剂甲基膦酸二甲酯（DMMP）和其它干扰气体的响应特性。结果表明在（5-70）×10^-6范围内，传感器对DMMP的响应呈线性关系，灵敏度为12.4×10^6Hz。当测试蒸汽为饱和浓度时，传感器对DMMP的响应比其它干扰气体高6倍以上，表现出良好的选择性。o-Allyl phenol was prepared with phenol,allyl bromide and anhydrone potassium carbonate as raw materials,via O-alkylation,Claisen rearrangement reaction.Then a new material-polymethyl [3-（2-hydroxy） phenyl]propyl siloxane（PMPS）,which was sensitive to toxic organophosphate vapor,was synthesized by hydrosilyation using poly methyl hydrosiloxane and o-Allyl phenol.The PMPS was coated on quartz crystal microbalances（QCM） to investigate its gas sensitive properties to dimethyl methylphosphonate（DMMP） vapor,a stimulant of nerve agents,and other interfere vapors.The PMPS-QCM sensor responded linearly to DMMP vapor with a slope of 12.4×10^6Hz in the（5-70）×10^-6 range.When tested with saturated vapors,the sensor was more than 6times sensitive to DMMP than to other interfere vapors.High selectivity of PMPS to DMMP was clarified.

关 键 词：聚甲基[3-(2-羟基)苯基]丙基硅氧烷 甲基膦酸二甲酯 石英晶体微天平 选择性 

分 类 号：O621[理学—有机化学] TB39[理学—化学]