Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties

The polyaniline (PANI)/nano-fly ash composites were synthesized by Inverted emulsion polymerization technique. The FTIR spectrum of PANI/nano-fly ash composite (50/50) shows the vibrational bands due to N–H stretching (2165 cm−1), quinoid (1517 cm−1) and benzenoid ring stretching (1354 cm−1), etc. T...

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Autores principales:	Ramanath Prabhu, T. Jeevananda, Kakarla Raghava Reddy, Anjanapura V. Raghu
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Polyaniline Fly ash Inverted emulsion polymerization Electrical conductivity Dielectric constant Materials of engineering and construction. Mechanics of materials TA401-492 Energy conservation TJ163.26-163.5
Acceso en línea:	https://doaj.org/article/e32f6140f9e549878d9f5dc3d5576e0f
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spelling	oai:doaj.org-article:e32f6140f9e549878d9f5dc3d5576e0f2021-11-30T04:16:54ZPolyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties2589-299110.1016/j.mset.2021.02.001https://doaj.org/article/e32f6140f9e549878d9f5dc3d5576e0f2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2589299121000082https://doaj.org/toc/2589-2991The polyaniline (PANI)/nano-fly ash composites were synthesized by Inverted emulsion polymerization technique. The FTIR spectrum of PANI/nano-fly ash composite (50/50) shows the vibrational bands due to N–H stretching (2165 cm−1), quinoid (1517 cm−1) and benzenoid ring stretching (1354 cm−1), etc. The UV–Visible absorption shows an absorption peak at 267 and 374 nm for PANI/nano-fly ash composite. Raman spectrum of composite shows peaks at 1635, 1339, 1179, 829, 569, 414 and 200 cm−1. The conductivity of pure polyaniline was decreased as a result of the addition of nano fly ash. X-ray diffraction of the composite shows two crystalline peaks at 20.9° and 26.2° (2Θ). The stability of pure PANI is enhanced by the incorporation of nano -fly ash. The coating of polyaniline on nano-fly ash has been confirmed by FESEM pictures. The AC conductivity was explained using the hopping model. The dielectric constant decreases as the frequency increases, it was explained by using Maxwell–Wagner polarization theory.Ramanath PrabhuT. JeevanandaKakarla Raghava ReddyAnjanapura V. RaghuKeAi Communications Co., Ltd.articlePolyanilineFly ashInverted emulsion polymerizationElectrical conductivityDielectric constantMaterials of engineering and construction. Mechanics of materialsTA401-492Energy conservationTJ163.26-163.5ENMaterials Science for Energy Technologies, Vol 4, Iss , Pp 107-112 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Polyaniline Fly ash Inverted emulsion polymerization Electrical conductivity Dielectric constant Materials of engineering and construction. Mechanics of materials TA401-492 Energy conservation TJ163.26-163.5
spellingShingle	Polyaniline Fly ash Inverted emulsion polymerization Electrical conductivity Dielectric constant Materials of engineering and construction. Mechanics of materials TA401-492 Energy conservation TJ163.26-163.5 Ramanath Prabhu T. Jeevananda Kakarla Raghava Reddy Anjanapura V. Raghu Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
description	The polyaniline (PANI)/nano-fly ash composites were synthesized by Inverted emulsion polymerization technique. The FTIR spectrum of PANI/nano-fly ash composite (50/50) shows the vibrational bands due to N–H stretching (2165 cm−1), quinoid (1517 cm−1) and benzenoid ring stretching (1354 cm−1), etc. The UV–Visible absorption shows an absorption peak at 267 and 374 nm for PANI/nano-fly ash composite. Raman spectrum of composite shows peaks at 1635, 1339, 1179, 829, 569, 414 and 200 cm−1. The conductivity of pure polyaniline was decreased as a result of the addition of nano fly ash. X-ray diffraction of the composite shows two crystalline peaks at 20.9° and 26.2° (2Θ). The stability of pure PANI is enhanced by the incorporation of nano -fly ash. The coating of polyaniline on nano-fly ash has been confirmed by FESEM pictures. The AC conductivity was explained using the hopping model. The dielectric constant decreases as the frequency increases, it was explained by using Maxwell–Wagner polarization theory.
format	article
author	Ramanath Prabhu T. Jeevananda Kakarla Raghava Reddy Anjanapura V. Raghu
author_facet	Ramanath Prabhu T. Jeevananda Kakarla Raghava Reddy Anjanapura V. Raghu
author_sort	Ramanath Prabhu
title	Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
title_short	Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
title_full	Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
title_fullStr	Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
title_full_unstemmed	Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties
title_sort	polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: physicochemical, thermal and dielectric properties
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/e32f6140f9e549878d9f5dc3d5576e0f
work_keys_str_mv	AT ramanathprabhu polyanilineflyashnanocompositessynthesizedviaemulsionpolymerizationphysicochemicalthermalanddielectricproperties AT tjeevananda polyanilineflyashnanocompositessynthesizedviaemulsionpolymerizationphysicochemicalthermalanddielectricproperties AT kakarlaraghavareddy polyanilineflyashnanocompositessynthesizedviaemulsionpolymerizationphysicochemicalthermalanddielectricproperties AT anjanapuravraghu polyanilineflyashnanocompositessynthesizedviaemulsionpolymerizationphysicochemicalthermalanddielectricproperties
_version_	1718406836553515008

Polyaniline-fly ash nanocomposites synthesized via emulsion polymerization: Physicochemical, thermal and dielectric properties

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