Polyaniline/HCl/CuCl₂/TPU Nanocomposites: Synthesis, Characterization and its Microwave Absorption Behaviour in X-Band

Abstract

CuCl₂-doped polyaniline (PANI)-based microwave absorbing materials were prepared and characterized by different analytical techniques, which confirm the occurance of doping. The electrical conductivity of the nanocomposites was measured by a four-probe method, and the result was explained by considering the complexation between Cu²⁺ and PANI. Microwave absorption studies were carried out in the X-Band region and discussed with the help of complex permittivity and permeability of the prepared microwave absorbing materials. Microwave absorption result showed that these nanocomposites can be potentially used for various microwave absorbing applications. The thermal stability of the nanocomposites increases due to the incorporation of CuCl₂.

Keywords:

• Conductivity
• Copper (II) chloride
• Nanocomposites
• Polyaniline
• Reflection loss

ACKNOWLEDGMENT

The authors are thankful to IIT Kharagpur. P.B. is also thankful to Council of Scientific and Industrial Research (CSIR), New Delhi, India for their financial support. S. D. is thankful to Defense Research & Development Organization (DRDO), India.

Notes

*Dodecylbenzenesulfonic acid (DBSA) and poly(styrene-b-styrene-butadiene-b-styrene) (STF).