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IJSTR >> Volume 3- Issue 2, February 2014 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Synthesis, Characterization And Electrical Conductivity Of Poly (2- Chloroaniline)/MMT And Poly (2-Chloroaniline)/Na-Bentonite Nano Composites In The Presence Of Surfactants

[Full Text]



Porselvi Linganathan, Jhancy Mary Samuel



Index Terms: composites, dodecyl benzene sulphonic acid, electrical conductivity, montmorillonite, Na-Bentonite,poly (2-chloroaniline), Surfactants.



Abstract: The poly (2-chloroaniline)/ Montmorillonite (P2ClAn/MMT) and poly (2-chloroaniline)/Na-Bentonite (P2ClAn/Na-Bentonite) nano composites were prepared by insitu chemical oxidative polymerization method using ammonium per sulphate (oxidant), HCl (dopant), sodium lauryl sulphate (surfactant) in the presence and absence of dodecyl benzene sulphonic acid (DBSA). The crystallite size of the polymer composites as calculated by Debye-Scherrer equation from XRD data shows the particle size in the range 20-35 nm. The composites were stable upto 550o C. The impedance and the conductance as measured in the frequency range from 20 Hz to 1 MHz at room temperature showed an increase in conductivity in the composite when compared to pure polymer. Among the P2ClAn/clay nano composites synthesized, the poly (2-chloroaniline)/Montmorrilonite in the presence of dodecyl benzene sulphonic acid (P2ClAn-DBSA/MMT) has the maximum conductivity of 3.6 x 10-3 S/cm at room temperature. The crystallinity and orientation is retained in the P2ClAn-DBSA/MMT and hence it has high conductivity than the other composites. The composites synthesized behave as organic metals due to their semiconducting nature.



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