Structural Controlled Carbon Nanotube-polyaniline Core-shell Nanocomposites
The core-shell structured carbon nanotube-polyaniline nanocomposites were prepared successfully by ultrasonically assisted in situ polymerization. The morphology and microstructure was characterized by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray diffraction (XRD). It is shown that the presence of multi-wall carbon nanotubes with minimal defect during the polymerisation of aniline caused the formation of a more planar conformation of polyaniline, which acted as a coating layer for the carbon nanotubes. By varying the ratio of aniline monomer and carbon nanotube, the different thickness of polyaniline layer can be obtained. The resulting nanocomposites depend on sites-selective interaction between the π-bonds of the aromatic ring of the PANI with the graphitic structure of MWNT, which facilitates charge-transfer between the two components. Improvements on electrical conductivity were observed for all nanocomposites.
carbon nanotube polyaniline core-shell structure π-π* conjugation interaction
LIANG Xia ZHU Meifang WU Wenhua SHAO Xiaolan QIN Zongyi
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, College of Material Science and Engineering, Donghua University, Shanghai 201620, P. R. China
国际会议
上海
英文
885-888
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）