| Abstract [eng] |
In recent decades, polymers have been extensively studied for their specific tunable intrinsic electrical conductivity properties and various application possibilities in radar-absorbent materials, smart textiles, flexible electronics, biosensors or energy harvesting, or energy-storing materials. Therefore, there is a need to produce and investigate various semiconductive composites. This thesis presents semiconductor composites of polymer origin by bioinspired in situ polymerization process by utilizing non-conductive substrates. Firstly, a new biogenic polypyrrole (PPy) microsphere synthesis method with Streptomyces spp. bacteria were applied and analysed. We tried to mimic the polymerization, as mentioned earlier, results by a bioinspired microemulsion polymerization process in microfluidic systems. Also, we implement a novel PPy in situ polymerization process on non-conductive surfaces, including various textiles, which leads to conductive composite formation. Composites dopant incorporation into an adhesive matrix or pyrrole aqueous solution results in dependencies for electrical conductivity and shielding effectiveness parameters to evaluate PPy composites efficiency for electromagnetic wave absorbent materials. |
