中文摘要：

综述了近十年来聚苯胺导电高分子及其复合物气敏材料的研究进展。重点介绍了纳米结构聚苯胺、聚苯胺与有机高分子复合材料、聚苯胺与纳米结构无机半导体或金属等复合材料的气敏响应特性及敏感机理。讨论了影响聚苯胺基纳米复合材料气敏性能的主要因素,包括复合材料的纳米结构、制备工艺,以及有机高分子,无机半导体及金属等复合材料和检测气体的性质等,提出这类高分子复合气敏材料今后发展的趋势与前景。

英文摘要：

Gas detection has become more and more important in a wide range of fields such as industrial and agricultural production,environmental protection and public security,which stimulates the fast development of various gas sensitive materials. In this paper,research progress was reviewed in the study of gas sensitive materials and gas sensors based on polyaniline （PANi） and its composites in the past ten years. The gas sensing behavior and sensitive mechanism of nanostructured PANI and its composites with organic polymers,nanostructured inorganic semiconductors or metals were discussed in detail. The major factors influencing the gas sensing property of PANI and its composites were examined including nanostructures of the components,preparation techniques,properties of the composing organic polymer,inorganic semiconductors and metals,the target gas,etc. The research directions in this field were also proposed.