Effect of solvent-dopant competition on the conductivity of polyaniline films

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作者：
Trznadel, M. [1 ]
Rannou, P. [1 ]
机构：
[1] CEA, Grenoble, France
来源：
Synthetic Metals | 1999年 / 101卷 / 01期
关键词：
Doping (additives) - Electric conductivity of liquids - Inorganic acids - Mathematical models - Plastic films - Protons - Solutions - Solvents - Synthesis (chemical) - Ultraviolet spectroscopy;
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摘要：
Protonation of PANI-EB in m-cresol with camphorsulphonic acid (CSA) was carried out for different PANI/CSA ratios by addition of CSA to PANI in m-cresol: 1st) at once; 2nd) after 2 weeks. In the 2nd case PANI is doped rather by m-cresol than by CSA as evidenced by UV-VIS-NIR spectroscopy. As a result, the films cast from solutions prepared using the 1st procedure showed the conductivity 4-5 orders higher that those obtained done by the 2nd one. A model of strong solvent-dopant competition is proposed to explain this behavior.
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