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A Comparative study of Structural, Thermal and Conducting properties of Polyaniline, Polypyrrole and Poly (Ani-co-Py) Copolymer

Published online by Cambridge University Press:  06 June 2019

Monika Saini ,
Nidhi Sheoran ,
Rajni Shukla ,
Tanuj Kumar Open the ORCID record for Tanuj Kumar [Opens in a new window]  and
S.K. Singh
Monika Saini
Affiliation:
Department of Physics, D.C.R University of Science & Technology, Murthal, Sonipat, Haryana (India)
Nidhi Sheoran
Affiliation:
Department of Physics, D.C.R University of Science & Technology, Murthal, Sonipat, Haryana (India)
Rajni Shukla
Affiliation:
Department of Physics, D.C.R University of Science & Technology, Murthal, Sonipat, Haryana (India)
Tanuj Kumar
Affiliation:
Department of Nano Science and Material, Central University of Jammu, Jammu (India)
S.K. Singh*
Affiliation:
Department of Physics, D.C.R University of Science & Technology, Murthal, Sonipat, Haryana (India)
*
*Corresponding author: [email protected]
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Abstract

Conducting polymers namely polyaniline (PANI), polypyrrole (PPy) and their copolymer poly(Aniline-co-Pyrrole)(PAPY) were prepared via in-situ polymerization process. The X-ray diffraction (XRD), infra-red (IR)and field emission-scanning electron microscopy (FESEM) studies confirm the formation of polyaniline, polypyrrole and their copolymer with aniline and pyrrole. The XRD pattern of copolymer displayed an amorphous structure as compared to polycrystalline homopolymers. FE-SEM results of Poly (Ani-co-Py) shows the existence of agglomerated spherical structured particles in the copolymer matrix, while the polyaniline and polypyrrole exhibit the porous tubular and spherical structures, respectively. Thermo gravimetric analysis (TGA) shows that the copolymer is more stable as compared to their homopolymers at higher temperature. Four probe resistivity (FPR) studies indicate that copolymer has the lower conductivity and act as a diode. Vector network analyzer (VNA) measurements observe a significant shielding effectiveness (SE) for all the conducting polymers.

Keywords

polymerthermogravimetric analysis (TGA)electrical properties
Type
Articles
Information
MRS Advances , Volume 4 , Issue 28-29: Innovations and Technology for Rural India , 2019 , pp. 1639 - 1648
Copyright
Copyright © Materials Research Society 2019 

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