Formation Mechanism of Self-Assembled Polyaniline Micro/Nanotubes
Formation Mechanism of Self-Assembled Polyaniline Micro/Nanotubes
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DOI：
10.1021/la0155799
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发表时间：
2002-01
期刊：
影响因子：
3.9
通讯作者：
Zhixiang Wei;Zhiming Zhang;M. Wan
中科院分区：
文献类型：
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作者：
Zhixiang Wei;Zhiming Zhang;M. Wan
以β-萘磺酸（β-NSA）为掺杂剂，合成了聚苯胺（PANI）自组装微/纳米管（直径650−76 nm）。结果表明，随着β-NSA与苯胺摩尔比的减小，PANI-NSA管的直径和室温电导率减小。根据X射线衍射（XRD）和动态光散射（DLS）的结果，提出了当β-NSA与苯胺的摩尔比较高（e. G. 2），β-NSA和苯胺形成的NSA-An盐沉淀在形成PANI-NSA管中起到“模板样”作用，而当比例较低时（例如，1/2或1/4）。
Self-assembled micro/nanotubes (650−76 nm in diameter) of polyaniline (PANI) were synthesized in the presence of β-naphthalene sulfonic acid (β-NSA) as a dopant. It was found that the diameter and room-temperature conductivity of the PANI−NSA tubes decreased with the decrease of the molar ratio of β-NSA to aniline. On the bases of the results obtained from X-ray diffraction (XRD) and dynamic lighting scattering (DLS), it was proposed that when the molar ratio of β-NSA to aniline was high (e. g. 2), the NSA−An salt precipitate formed by β-NSA and aniline played a “template-like” role in forming the PANI−NSA tubes, while the “template-like” role was played by the NSA−An micelle when the ratio is low (e.g., 1/2 or 1/4).