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SEM study of the morphology of high molecular weight polyaniline
Journal article   Peer reviewed

SEM study of the morphology of high molecular weight polyaniline

Danming Chao, Jingyu Chen, Xiaofeng Lu, Liang Chen, Wanjin Zhang, Yen Wei and Lita W Chen
Synthetic metals, v 150(1), pp 47-51
2005
DOI: https://doi.org/10.1016/j.synthmet.2005.01.010

Abstract

Clews Lithium chloride Morphology Network Polyaniline SEM
High molecular weight polyaniline (PANI) was synthesized by adding neutral salt technique with MacDiarmid's method and the morphology of the obtained PANI was examined by the scanning electron microscope (SEM). A remarkable and special phenomenon has been found that the SEM images of resulting PANI show a mass of clews, the average diameter of which is about one micrometer. Furthermore, these honeycombed clews are tenuous, interconnected fibrillar network with characteristic cross-sectional fibril dimensions of a few tens of nanometers. In addition, various preparation parameters which will probably influence the morphology of the high molecular weight PANI in our investigation are: (a) the concentration of lithium chloride ([LiCl]); (b) reaction temperature ( t); (c) molar ratio of aniline:oxidant ([An]/[APS]); (d) the concentration of aniline ([An]); (e) the concentration of hydrochloric acid ([HCl]). Some correlations between the sample preparation process and its morphology properties have been obtained.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Materials Science, Multidisciplinary
Physics, Condensed Matter
Polymer Science
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