Synthesis and characterization of nanocomposites using cyclic maleimides and low-cost graphene sheets prepared by ball milling of hydrated coalAhmed Khames Ramadan, Ghazwan Hasan Abdulwahhab and Safaa Mohammad RashidEPJ Web Conf., 345 (2026) 01059DOI: https://doi.org/10.1051/epjconf/202634501059