The novel families of hole transporting monomers and polymers containing hydrazone moieties are reported. The polymers were prepared in polyaddition reaction of hydrazone-containing diepoxides with 4,4'-thiobisbenzenethiol. The hole drift mobilities in the newly synthesized polymers exceed 10(-4) cm(2) V-1 S-1 and in the compositions of the monomers with polymeric binder exceed 10(-6) cm(2) V(-1)s(-1) at an electric field of 106 V cm(-1) as characterized by the xerographic time of flight technique.