Satheesh Kumar, K.K. and Geetha, S. and Trivedi, D.C. (2005) Freestanding conducting polyaniline film for the control of electromagnetic radiations. Current Applied Physics, 5. pp. 603-608.

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Abstract

Electromagnetic interference is pollution generated due to dense nature of circuitry in electronic devices and is required to be control at its source. Polyaniline is an environmentally stable conducting polymer which can be cast as thin film, which can replace the corrosive metals as a shield for the control of electromagnetic radiations. In this communication we discuss our results on the preparation of flexible freestanding conducting polyaniline film of varied thickness using either p-toluenesulphonic acid (PTSA) or camphor-10-sulphonic acid as a primary dopant and 4-chloro-3-methyl phenol (CMC) as a secondary dopant. The resulting films were characterized by conductivity, scanning electron micrograph and shielding effectiveness measurements (SE). The SE measurements were carried out using co-axial transmission line method in the frequency range of 0.1–1000MHz. We noticed that only the change of 2% in the shielding effectiveness of these films over the period of 3 years indicating the environmental stability of polyaniline films.

Item Type:	Article
Uncontrolled Keywords:	Conducting polymers; Polyaniline; Flexible film; Electromagnetic interference; Shielding effectiveness
Subjects:	Functional Materials
Divisions:	UNSPECIFIED
Depositing User:	TTBD CECRI
Date Deposited:	13 Jan 2012 12:13
Last Modified:	13 Jan 2012 12:13
URI:	http://cecri.csircentral.net/id/eprint/30

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