采用化学氧化法以苯胺为单体,过硫酸铵为氧化剂,磺基水杨酸为掺杂酸合成聚苯胺纳米棒导电材料。考察了单体/掺杂酸摩尔比对聚苯胺形貌与电性能的影响,采用傅里叶红外光谱,XRD粉末衍射表征聚苯胺结构;电化学工作站、四探针研究表明聚苯胺的导电性随掺杂酸/单体摩尔比的增大而增大,单体/掺杂酸摩尔比为2时电导率为1.43S/cm;SEM、TEM表明聚苯胺纳米棒表面粗糙,直径约为100～200nm,长度约为400～700nm,表面附着了1层10～30nm厚的颗粒;并提出了纳米棒可能的形成机理。
Polyaniline nanorods doped with sulfosalicylic acid were prepared by chemical oxidization polymerization with aniline as monomer and ammonium persulfate as oxidant.The influence of mono mer/dopant mole ratio on the electrochemical properties and morphology of synthesized polyaniline.The structure of polyaniline was characterized and studied by FT-IR spectrometric and XRD analysis.Four-point and electrochemical system analysis show that conductivity of polianiline nanorod increase as the increasement of dopant/monomer mole ratio and it reached to 1.43S/cm as the dopant/monomer mole ratio is 0.5.SEM and TEM images indicate that typical nanorods are rough with diameter of about 100-200nm and length of about 400-700nm,respectively.Small 10-30nm granular nanoparticles appear to agglomerate onto the available nanorod surface.At last,the probable formation mechanism of polyaniline nanorod is proposed.
参考文献
| [1] | Bhadra S;Khastgir D;Singha N K et al.[J].Progress in Polymer Science,2009,34:783-810. |
| [2] | Unsworth J;Lunn B A;Innis P C et al.[J].Intel Mat Syst Str,1992,3:380-395. |
| [3] | Schoch Jr K F .[J].IEEE Electric Insulat Mag,1994,10:29-32. |
| [4] | Angelopoulos M .[J].Research and Development,2001,45:57-75. |
| [5] | Gospodinova N.;Terlemezyan L. .Conducting polymers prepared by oxidative polymerization: Polyaniline [Review][J].Progress in Polymer Science,1998(8):1443-1484. |
| [6] | Stejskal J;Sapurina I;Trchova M.LJI .[J].Progress in Polymer Science,2010,35:1420-1481. |
| [7] | Laslaua C;Zujovic Z D;Travas-Sejdic J .[J].Rapid Communications,2009,30:1663-1668. |
| [8] | Li X G;Duan W;Huang M R et al.[J].Polymer Science Part A:Polymer Chemistry,2001,39(22):3989-4000. |
| [9] | Huang Y F;Lin C W .[J].Synthetic Metals,2009,15:1824-1830. |
| [10] | Wei ZX.;Zhang ZM.;Wan MX. .Formation mechanism of self-assembled polyaniline micro/nanotubes[J].Langmuir: The ACS Journal of Surfaces and Colloids,2002(3):917-921. |
| [11] | Bouazza S;Alonz V;Hauchard D .[J].Synthetic Metals,2009,159:1612-1616. |
| [12] | Neoh KG.;Kang ET.;Tan KL.;Pun MY. .POLYANILINE TREATED WITH ORGANIC ACIDS - DOPING CHARACTERISTICS AND STABILITY[J].Synthetic Metals,1995(3):209-215. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%