Mechanical properties of polycarbonate antiplasticized with a charge‐transfer complex

Polymers doped with low‐molecular‐weight charge‐transfer (CT) complexes exhibit interesting electrical and photoelectrical properties. On the basis of the results of thermally stimulated depolarization (TSD) for polycarbonate (PC) doped with tetracyanoethylene‐t‐stilbene complex and its components, some information about the mechanism of mutual interaction was obtained. The measurements of stress relaxation, mechanical moduli, and ultimate strength in a wide temperature range fully confirmed the predicted behavior of PCs doped with CT complex and its components. Doping the PC with CT complex and its components lowers the glass‐transition temperature and increases the modulus in the range −60 to +60°C. The effects of doping on the mechanical properties of PC are explained in terms of α‐ and β‐relaxations.