Abstract
TiO2/PPy composite was prepared by in situ polymerization of pyrrole on TiO2 microparticles. The results show that PPy chains have ordered arrangement to some extent. The average diameter of PPy microspheres is roughly 500 nm. TiO2 microspheres obtained are anatase-type. PPy/TiO2 composite particles are similar to spheres and there is some reunite phenomenon. The tanδe value for TiO2/PPy composite is higher than PPy in the frequency range of 8.2-12.4 GHz and it has achieved a maximum of 0.57 at 11.9 GHz.
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