POLYIMIDES FOR USE AS HIGH REFRACTIVE INDEX, THIN FILM MATERIALS

摘要

New compositions for use as high refractive index layers are provided. The compositions comprise a polyimide dispersed or dissolved in a solvent system. The polyimide can be prepared from commercially available dianhydrides and diamines. Preferred polymer include recurring monomers selected from the group consisting of formula (I) and (II). The inventive compositions can form strong, thin films and have high refractive indices making them useful in a wide range of optical applications.