Dielectric and electrical properties of PANI composite films

Author

Mezdour, Douniazad ; Tabellout, Mohamed ; Bardeau, Jean Francois ; Sahli, Salah

Author_Institution

Lab. d´etude des Mater., Mohamed Seddik Ben Yahia Univ., Jijel, Algeria

fYear

2014

fDate

26-27 Oct. 2014

Firstpage

1

Lastpage

4

Abstract

The present work deals with the preparation of films from polymeric core-shell particles. Our approach is based on the chemical polymerization of a very thin layer of polyaniline (PANI) around particles of transparent polymers (polyamide and polystyrene). Films are then obtained by dissolving the two type synthesized core-shell powders in dichloromethane and m-Cresol respectively. Electrical properties were investigated using a dielectric relaxation spectrometer. Both composite films exhibited a percolative behaviour and a well established dc conductivity for high PANI concentration related to the conductive properties of the PANI spanning clusters. This property allows using such films in semi-conductive applications. For polyamide films, high dielectric constants were obtained at 5 wt. % of PANI allowing their use as high k-dielectrics compatibles with organic printed circuit boards.

Keywords

conducting polymers; dielectric relaxation; dissolving; electrical conductivity; filled polymers; high-k dielectric thin films; percolation; permittivity; polymer films; polymerisation; transparency; PANI composite films; chemical polymerization; conductive properties; core-shell powders; dc conductivity; dichloromethane; dielectric properties; dielectric relaxation spectrometry; dissolving; electrical properties; high PANI concentration; high dielectric constant; high k-dielectrics; m-Cresol; organic printed circuit boards; percolative behaviour; polyamide; polymeric core-shell particles; polystyrene; semiconductive applications; thin polyaniline layer; transparent polymers; Conductivity; Dielectric constant; Films; Permittivity; Plastics; Polymers; Composite; Dielectric; Film; Polyaniline; Polymer;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Materials for Photovoltaic Systems (NAWDMPV), 2014 North African Workshop on

Conference_Location

Tlemcen

Print_ISBN

978-1-4799-6502-1

Type

conf

DOI

10.1109/NAWDMPV.2014.6997612

Filename

6997612