ELECTRIC-CONDUCTIVITY OF POLYMER COMPOSITES WITH 7,7,8,8-TETRACYANOQUINODIMETHAN SALTS

The electric properties of polymer composites with highly conductive 7,7,8,8-tetracyanoquinodimethan (TCNQ) salts such as quinolinium-TCNQ complex salt (Q multiplied by (times) TCNQ//2), acridinium-TCNQ complex salt (HA multiplied by (times) TCNQ//2), and N-methylacridinium-TCNQ complex salt (MA multiplied by (times) TCNQ//2) were studied. Polyacrylonitrile (PAN), poly(N-vinylcarbazole) (PVK), and poly(4-vinylpyridine), (P4VP), etc. , were chosen as matrix polymers. The resistivity ( rho ) of the PAN-Q multiplied by (times) TCNQ//2 was 0. 37 OMEGA cm at the Q multiplied by (times) TCNQ//2 content of 20 wt% in the film. The properties of the composites were influenced by the combination of the TCNQ salts and the polymers. The uniformity and the stability of the composites were necessary to obtain the high conductive composites.