Synthesis and characterization of self-doped poly(aniline-co-aminonaphthalene sulfonic acid) nanotubes

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作者：
机构：
[1] Wei, Zhixiang
[2] Wan, Meixiang
来源：
Wan, M. (wanmx@infoc3.icas.ac.cn) | 1600年 / John Wiley and Sons Inc.卷 / 87期
关键词：
Amines - Characterization - Chemical bonds - Copolymerization - Decomposition - Morphology - Nanotubes - Scanning electron microscopy - Synthesis (chemical) - Temperature - Thermodynamic stability - Transmission electron microscopy;
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摘要：
Self-doped poly(aniline-co-aminonaphthalene sulfonic acid) (PANI-ANSA) was synthesized by the copolymerization of 5-aminonaphthalene-2-sulfonic acid (ANSA) and aniline. Scanning electron microscopy and transmission electron microscopy showed that the morphology of PANI-ANSA synthesized at a high molar ratio of aniline to ANSA was nanotubular, but at a low molar ratio, only a granular morphology formed. A possible formation mechanism for nanotubes was proposed. PANI-ANSA had better thermal stability than HCl-doped polyaniline; the highest onset decomposition temperature was as high as 340°C because of -SO3H linked with the polymer backbone by a covalent bond. PANI-ANSA was partially soluble in basic solutions, and its conductivity was between 10-2 and 10-4 S/cm, depending on the sulfonation degree.
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