Sonochemical synthesis of polyaniline nanofibers

Ultrasonics Sonochemistry
Xinli JingJipeng Qiang

Abstract

Conventionally, micro-sized irregular polyaniline (PANI) particles were synthesized by dropwise addition of the ammonium persulfate (APS) solution into the aniline (ANI) solution with mechanical stirring. By replacing the mechanical stirring with an ultrasonic irradiation, PANI nanofibers in diameters of approximately 50 nm and lengths of 200 nm to several micrometers were prepared. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed that at the early stage of polymerization, the polymers formed in both the mechanical stirred and ultrasonicated systems are in the form of nanofiber. However, with continuing of the reaction, these primary nanofibers grow and agglomerate into irregular shaped PANI particles in the mechanical stirred system, while in the case of the ultrasonic irradiation, the growth and agglomeration are effectively prevented, preserving thus the PANI nanofibers in the final product. By increasing the APS/ANI molar ratio from 0.5 to 2.5, the aspect ratios of the PANI nanofibers decreased. The PANI nanofibers exhibit higher solubility than the irregular shaped PANI particles. Although the yield, as well as the conductivity of the ultrasonic synthesized PANI nanofibers, was slightly ...Continue Reading

References

Oct 9, 2002·Angewandte Chemie·Liang LiangYuehe Lin
Jan 9, 2003·Journal of the American Chemical Society·Jiaxing HuangRichard B Kaner
Jan 29, 2003·Ultrasonics Sonochemistry·Mahito AtobeTsutomu Nonaka
Jan 22, 2004·Journal of the American Chemical Society·Jiaxing Huang, Richard B Kaner
Nov 4, 2004·Angewandte Chemie·Jiaxing Huang, Richard B Kaner
Jan 26, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Yong WangGuanying Yang

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Citations

Mar 5, 2011·Journal of Materials Science. Materials in Medicine·A BorrielloL Ambrosio
Feb 11, 2014·Carbohydrate Polymers·Yan-Yan DongShan-Peng Wang
Jul 1, 2013·Journal of Advanced Research·P MuthirulanM Meenakshisundaram
Jun 29, 2010·Progress in Polymer Science·Vince Beachley, Xuejun Wen
Mar 19, 2009·Macromolecular Rapid Communications·Pablo JiménezAna M Benito
Mar 25, 2011·Macromolecular Rapid Communications·Yue WangRichard B Kaner
Oct 30, 2015·Journal of Clinical Nursing·Chang-Chiao HungChia-Chi Hsiao
Jan 20, 2016·Japan Journal of Nursing Science : JJNS·Chang-Chiao HungTsui-Ping Chu
Dec 10, 2014·Expert Review of Medical Devices·Vincenzo GuarinoLuigi Ambrosio
Feb 12, 2009·ACS Nano·Henry D TranRichard B Kaner
Aug 13, 2010·The Journal of Physical Chemistry. B·Weina ZhangXinli Jing
Apr 5, 2008·The Journal of Physical Chemistry. B·Chuanqiang ZhouRong Guo

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