Amines 1 Charge storage 1 Cyanides 1 Cyclic voltammetry 1 Dielectric behavior 1 Dielectric properties of solids 1 Digital storage 1 Electric discharges 1 Electrical charge storage capability Electrical charges 1 Energy storage 1 Energy storage applications 1 Functionalized MWCNTs 1 Functionalized-MWCNT 1 MWCNT's 1 Morphology 1 Multiwalled carbon nanotubes (MWCN) 1 Nanocomposite films 1 Nanocomposites 1 Nitrile-based polyimide nanocomposite 1 Polyimides 1 Storage capability 1 dielectric behavior 1 electrical charge storage capability 1 nitrile-based polyimide nanocomposites 1 thermal properties 1