REFRACTIVE AND ELECTROPHYSICAL PROPERTIES OF DISPERSED SOLUTIONS OF FULLERENE [C.sub.60] IN BINARY SOLVENTS

An experimental study has been made of the influence of the concentration of a solvent and a solute on the clusterization of fullerene [C.sub.60] molecules in a [C.sub.60]/xylol/hexane solution by refractometry methods. By the methods of dynamic light scattering and transmission electron microscopy it has been established that when a nonequilibrium method of preparation of a fullerene [C.sub.60] solution in binary mixtures (xylol + hexane) is employed negatively charged clusters of diameters ~ 60-70 nm are formed in the solution. It has been established that the high aggregative stability of the solution of fullerene with a concentration of [C.sub.60] of -0.036 g/L is determined by the relatively high values of the electrokinetic [zeta] potential of nanoclusters ([zeta] = -26.6-28.2 mV).