Conductive polymers (CP) show desirable physicochemical properties, with CP-based nanocomposites being manufactured for various applications i.e. sensors The filler particles (FPs) used for nanocomposition modify the functional properties of the CP matrix and induce changes in the nanocomposite properties, especially regarding interaction between the nanoparticle and polymer Consequently the structure/mobility of the polymer network will be altered compared to the bulk. Understanding the influence of FPs on chain mobility/structure is key for future device application/synthesis We ask to use incoherent neutron spectroscopy (IRIS) to better understand the interplay between FPs and CP chain dynamics/structure Three nanodiamond FP composite materials will be studied (PANI, PPy, PEDOT) between 10-550K. Our neutron results will be likened to results collected using other experimental methods