Dielectric properties of polymers containing dispersed TCNQ salts

Tetracyanoquinodimethane salts have been incorporated into insulating polymers to raise their dielectric constants. Cast films prepared from mixtures of insulating polymers and tetracyanoquinodimethane salts in a solvent show a high dielectric constant (>20). The dielectric constant of the films varies with the tetracyanoquinodimethane salts. High values were attained with the films containing high-conducting tetracyanoquinodimethane salts. These values remain constant over a range of frequencies (10²–10⁴ Hz). Dissipation factors and electric strength values of the films are also reported.