PHOTOCONDUCTIVITY AND HOLE TRANSPORT IN POLYMERS OF AROMATIC AMINE-CONTAINING METHACRYLATES.

Abstract

Data are presented which demonstrate that a substantial hole transport can be achieved in organic polymers simply by incorporating aromatic amine groups into the monomer. Hole mobilities similar to or greater than those in poly(N-vinyl-carbazole)(PVK) were measured in a series of high molecular weight arylamine-substituted poly-methacrylates. The hole transport in these polymers is electric-field-dependent as in PVK, varying between E and E**2 within a range of 4 multiplied by 10**4 - approximately 9 multiplied by 10**5 V/cm. The polymers also exhibit carrier generation in ultraviolet (UV) light in the range of absorption. Synthesis of the monomers, their polymerization, and the general properties of these polymers are discussed.