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With the rapid development of wireless communication technologies and the miniaturization trend in the electronics industry, the reduction of electromagnetic interference has become an important issue. To solve this problem, a lot of attention has been focused on polymer composites with combined functional fillers. In this paper, we report a method for creating an acrylonitrile butadiene styrene (ABS) plastic composite with a low amount of conductive carbon and magnetic fillers preparation. Also, we investigate the mechanical, thermophysical, and electrodynamic characteristics of the resulting composites. Increasing the combined filler amount in the ABS composite from 1 to 5 wt % leads to a composite conductivity growth of almost 50 times. It is necessary to underline the temperature decrease of 5 wt % mass loss and, accordingly, the composite heat resistance reduction with an increase in the combined filler from 1 to 5 wt %, while the thermal conductivity remains almost constant. It was established that electrodynamic and physical–mechanical characteristics depend on the agglomeration of fillers. This work is expected to reveal the potential of combining commercially available fillers to construct effective materials with good electromagnetic interference (EMI) protection using mass production methods (extrusion and injection molding). [ABSTRACT FROM AUTHOR]

• Maleimide copolymers bearing pendant allyl groups were obtained by radical copolymerization of maleimide and allylmaleimide with methylmethacrylate and allylmethacrylate. • Copolymerization of N-allylmaleimide with allylmethacrylate leads to the formation of crosslinked copolymers with high heat resistance. • All the copolymers are stable up to 290°C; AMI copolymers are more heat resistant. • At 450°C, depolymerization is the dominant pyrolysis mechanism of poly(АMI-МMA), but depolymerization process of poly(АMI-AMA) does not occur due to increasing the number of crosslinkages Maleimide copolymers bearing pendant allyl groups were obtained by radical copolymerization of maleimide and allylmaleimide with methylmethacrylate and allylmethacrylate in bulk and methanol solution in the presence of AIBN. The structural features of the copolymers were studied using UV, IR, and NMR spectroscopy. During the copolymerization of maleimide with allylmethacrylate and N-allylmaleimide with methylmethacrylate at high conversions, an increase in the viscosity of the system is observed, which results in cross-linking along the "allyl bonds" of side polymer chains with the formation of insoluble copolymers that swell in DMSO. Copolymerization of N-allylmaleimide with allylmethacrylate already at initial conversions leads to the formation of crosslinked copolymers with high heat resistance. The thermal degradation behavior of copolymers was studied and the volatile products were investigated. [ABSTRACT FROM AUTHOR]