| PAM-g-PVA/MWCNTs导电复合材料的制备及表征 |
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| 引用本文： | 魏清渤,付峰,张玉琦,袁芯,宋延卫,蔡礼.PAM-g-PVA/MWCNTs导电复合材料的制备及表征[J].陕西化工,2012(10):1682-1684,1688. |
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| 作者姓名： | 魏清渤 付峰 张玉琦 袁芯 宋延卫 蔡礼 |
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| 作者单位： | [1]陕西省化学反应工程重点实验室延安大学化学与化工学院,陕西延安716000 [2]延安职业技术学院石油工程系,陕西延安716000 |
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| 基金项目： | 国家杰出青年科学基金（21103146）; 陕西省教育厅专项研究计划资助（11JK0587）; 延安大学科研启动基金资助（YD2009-07） |
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| 摘 要： | 以硝酸铈胺-PVA为氧化还原引发体系,制备了丙烯酰胺接枝聚乙烯醇（PAM-g-PVA）聚合物,采用共混法,在接枝聚合物中掺杂多壁碳纳米管制备了PAM-g-PVA/MWCNTs气敏传感导电薄膜材料,研究了在不同饱和蒸气中的气敏响应性。结果表明,导电薄膜在乙酸乙酯、正丙醇饱和有机溶剂蒸气中显示负蒸气系数效应（NVC）,在丙酮和盐酸饱和蒸气中为正气系数效应（PVC）,但随着电阻的增加,导电薄膜在盐酸饱和蒸气中呈现负蒸气系数效应。
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| 关 键 词： | 接枝聚合物 导电复合材料 气敏响应性 |
Preparation and characterization of conductive composites PAM-g-PVA/MWCNTs |
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| WEI Qing-bo,FU Feng,ZHANG Yu-qi,YUAN Xin,SONG Yan-wei,CAI Li.Preparation and characterization of conductive composites PAM-g-PVA/MWCNTs[J].Applied Chemical Industry,2012(10):1682-1684,1688. |
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| Authors: | WEI Qing-bo FU Feng ZHANG Yu-qi YUAN Xin SONG Yan-wei CAI Li |
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| Affiliation: | 1. Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry ＆ Chemical Engineering, Yah＇ an University, Yah＇ an 716000, China ;2. Department of Petroleum Engineering, Yan＇ an Vocational ＆ Technical College ,Yah＇ an 716000 ,China) |
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| Abstract: | The PAM-g-PVA graft copolymer was synthesized via a simple free radical polymerization reaction initiated by a redox reaction, and prepared the PAM-g-PVA/MWCNTs gas sensing conductive film material doping a ration of carbon nanometer tube in the graft polymer. The resistance responsiveness of the film samples to various vapor surroundings was investigated. The results showed that ethyl acetate and n-propyl alcohola negative vapor coefficient phenomenon （NVC） gave birth to. While in the case of acetone and hydrochloric acid vapor environments, presenting a positive vapor coefficient phenomenon （PVC）, with the films resistance increased, showing a negative vapor coefficient phenomenon in hydro- chloric acid vapor. |
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| Keywords: | graft copolymer conductive composites vapor response |
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