NDLI: Synthesis, characterization and low frequency a.c. conduction of polyaniline/fly ash composites

Content Provider	Springer Nature Link
Author	Raghavendra, S. C. Khasim, Syed Revanasiddappa, M. Ambika Prasad, M. V. N. Kulkarni, A. B.
Copyright Year	2003
Abstract	In situ polymerization of aniline was carried out in the presence of fly ash (FA) to synthesize polyaniline/ fly ash (PANI/FA) composites. The PANI/FA composites have been synthesized with various compositions (15, 20, 30 and 40 wt%) of FA in PANI. The composites, thus synthesized have been characterized by infrared spectroscopy and X-ray diffraction. The morphology of these samples was studied by scanning electron microscopy. Further the a.c. conductivity of these composites have been investigated in the frequency range 10$^{2}$–10$^{6}$ Hz. The presence of polarons and bipolarons are made responsible for frequency dependence of a.c. conductivity in these composites. The Cole-Cole plots indicate clear shift in the distribution of relaxation times as the wt% of FA in PANI changes. These composites show almost symmetric semicircles of Cole-Cole plots indicating the Debye-type relaxation in their polarization response.
Starting Page	733
Ending Page	739
Page Count	7
File Format	PDF
ISSN	02504707
Journal	Bulletin of Materials Science
Volume Number	26
Issue Number	7
e-ISSN	09737669
Language	English
Publisher	Springer India
Publisher Date	2003-01-01
Publisher Institution	Indian Academy of Sciences
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Conductivity polarons polyaniline fly ash Materials Science Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science

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