Titanium dioxide doped polyaniline
Titanium dioxide doped polyaniline
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DOI：
10.1016/j.msec.2004.11.003
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发表时间：
2005-06
期刊：
影响因子：
--
通讯作者：
Ji-Chuan Xu;Wei-min Liu;Hu-lin Li
中科院分区：
文献类型：
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作者：
Ji-Chuan Xu;Wei-min Liu;Hu-lin Li
采用原位聚合法制备了二氧化钛掺杂聚苯胺。采用平均粒径约20 nm的TiO 2纳米粒子作为聚苯胺的掺杂剂。采用扫描电镜（SEM）、傅里叶变换红外光谱（FT-IR）、能谱（EDS）和电导率测试等手段对TiO 2的掺杂效果进行了表征和评价。SEM研究表明，TiO 2纳米粒子对复合材料的形貌有很大的影响。FT-IR光谱表明，TiO 2与聚苯胺（PANI）之间的相互作用主要是以氢键的形成为基础的。电导率测试表明，复合材料在低TiO 2含量时的电导率远高于纯PANI，而随着TiO 2含量的增加，电导率呈现出有序下降的趋势。
Titanium dioxide doped polyaniline has been prepared by in situ polymerization. TiO2nanoparticles with an average diameter about 20 nm were used as a dopant of polyaniline. The doping effect of TiO2was characterized and evaluated by scanning electron microscopy (SEM), Fourier transformation infrared spectroscopy (FT-IR), energy dispersive spectrometry (EDS) and electrical conductivity measurement. SEM study shows that TiO2nanoparticles have a strong effect on the morphology of composites. The FT-IR spectra reveal that the interaction between TiO2and polyaniline (PANI) is primarily based on the formation of H-bonding. Electrical conductivity measurements indicate that the conductivity of composites at low TiO2content is much higher than that of neat PANI, while with the increasing contents of TiO2, the conductivity shows an orderly decrease.