The relationship of conductivity to the morphology and crystallinity of polyaniline controlled by water content via reverse microemulsion |
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Authors: | Qiong Zhou Jiewei Wang Yuliang Ma Chuanbo Cong Fang Wang |
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Institution: | (1) Department of Materials Science and Engineering, China University of Petroleum, Beijing, 102249, People’s Republic of China |
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Abstract: | Conducting polyaniline (PANI) with the controllable morphology and crystallinity were successfully synthesized with different
water content ( ) in the reverse microemulsion stabilized with sodium bis(2-ethylhexyl)-sulfosuccinate (AOT). In the microemulsion, the systems
containing the different amounts of water will show the different phase behaviors and structures. The influence of water content
on morphology and crystallinity of conducting PANI was characterized by a number of techniques such as Fourier transform infrared
spectra, UV–Visible, scanning electron microscopy, transmission electron microscopy, and X-ray powder diffraction and conductivity.
In particular, we focus on the understanding of the relationship between the morphology and the crystallinity and the conductivity
of PANI powder. With the increasing of the water content (W
0 = 13.9, 27.8, 55.5, and 111.1) in the microemulsion system, the morphology and the crystallinity obviously changed and the
values of relative conductivity are 0.05, 0.11, 2.7, and 1.8 S/cm, respectively. |
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Keywords: | Reverse microemulsion Polyaniline (PANI) Sodium bis(2-ethylhexyl)-sulfosuccinate (AOT) Water content |
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