Formation of Polyaniline Nanofibers: A Morphological Study

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• 作者：Yangyong Wang ; Xinli Jing
• 刊名：Journal of Physical Chemistry B
• 出版年：2008
• 出版时间：January 31, 2008
• 年：2008
• 卷：112
• 期：4
• 页码：1157 - 1162
• 全文大小：1298K
• 年卷期：v.112,no.4(January 31, 2008)
• ISSN：1520-5207

文摘

Polyaniline (PANI) powders were prepared by solution precipitation, rapid mixing polymerization, andinterfacial polymerization to find the key factors that influence the formation and growth of PANI nanofibers.In chemical oxidative polymerization of aniline, the morphology of the product is mainly determined byaniline concentration. In the case of lower aniline concentration, PANI nanofibers were formed and can bepreserved and collected as final product, while in the case of higher aniline concentration, larger sized PANIparticles or agglomerates were obtained owing to the growth of the nanofibers. Without participation of theoxidizing step, solid PANI samples with compact structures and dissimilar morphologies were achieved byrandom accumulation of PANI molecules.