聚苯胺/H_2W_2O_7层状复合材料的制备研究  

Preparation of Layered Polyaniline/H_2W_2O_7 Composite

作　　者：王炳山[1] 厉燕萍[2] 董晓雯[2] 蔡新安[1] 潘庆谊[2] 刘文茂[1] 

机构地区：[1]景德镇高等专科学校,景德镇333000 [2]上海大学理学院化学系,上海200444

出　　处：《化学学报》2009年第19期2199-2204,共6页Acta Chimica Sinica

基　　金：上海市纳米专项基金(No.0452nm073);景德镇高等专科学校青年基金(No.QNJJ-08-01)资助项目

摘　　要：以层状钨基氧化物(H2W2O7)为无机主体,用正庚胺改性后的正庚胺/H2W2O7复合物(HTT)为中间体,通过离子交换、层间O2引发聚合等步骤成功制备了聚苯胺/H2W2O7层状复合材料(PANI/H2W2O7).X射线衍射、扫描电子显微镜、红外光谱及差热分析结果表明:聚苯胺分子已成功地嵌入H2W2O7层间,层状结构没被破坏,层间距变至1.19nm;聚苯胺的嵌入还大大提高了材料的热稳定性.讨论了无机主体与有机客体之间的相互作用、聚苯胺在层间的排布形式及苯胺和聚苯胺插入层间的反应机理.Polyaniline/H2W2O7 （PANI/H2W2O7） composite with a layered structure was prepared indirectly with heptylamine/H2W2O7 （HTT） as the starting material through ion-exchange and O2-initiated polymerization steps. PANI/H2W2O7 composite was characterized via powder X-ray diffraction, scanning electron microscopy, infrared spectroscopy and thermal analysis. The results show that PANI has been successfully intercalated into the interlayer space of H2W2O7. Furthermore, PANI/H2W2O7 composite maintains the layered structure, and its interlayer spacing is 1.19 nm. A possible arrangement of intercalated PANI in the gallery of H2W2O7 was proposed and the thermal stability of PANI/H2W2O7 composite was greatly improved. The interaction between inorganic host and organic guest and intercalation mechanism of PANI in PANI/H2W2O7 composite were also discussed.

关 键 词：层状复合材料 聚苯胺 H2W2O7 插层 

分 类 号：O633.2[理学—高分子化学]