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Microwave absorbing materials have been based on a combination of compounds in order to generate dielectric and/or magnetic losses. These materials, which have a number of industrial applications, have, however, limitations linked chiefly with constraints of surface mass. Also, the use of dielectric compounds obtained by dispersion of conductive additives (carbon black, graphite, metallic powders) requires the control of both the rate of addition, and the phenomenon of particle aggregation, with an extremely high level of reproducibility. In fact, the function of these materials remains linked to the control of inter-particle electronic transfer. The parameter measured, i.e. (E', c") is thus dependent on the texture of the percolation aggregates and as a result governs the conditions of dispersion.The object of this article is to show how conductive polymers can supply a solution to this type of problem. From the surface mass point of view, conductive polymers supply solutions with respect to weight reduction, especially in the framework of applications requiring a good compromise between absorption bandwidth and surface mass. Thus, the frequency dependency of (E', E") of several conductive polymers, or the association of these materials with different substrates allows the design of new absorbents. From the reproducibility point of view, the growth methods used during the polymer synthesis lead to materials showing stable property levels compared to materials based on dispersions of conductive particles (in particular carbon black) in an insulating phase.As only the formulation parameters control the final properties of the material, the chemistry of conductive polymers offers a wide diversity of synthetic methods allowing both the integration of the conductive element in different media (matrix, reinforcement, honeycomb) and the construction of complex structures, giving not only absorption of microwaves but also conforming to environmental constraints. From the point of view of the applications of conductive polymers, several papers have dealt with the produc

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