Layer-structured Metallopolymers with Pendant Carbazole Groups

摘要

Organic polymers with spatially ordered functional groups often exhibit enhanced physical properties compared to amorphous polymers with randomly orientated functional groups.1"7 Many crystalline and mesophase polymers have been developed in order to achieve supramolecular ordering of functional groups and/or the polymer backbone. For example, a wholly aromatic polyester consisting of a rigid poly(p-phenylene terephthalate) (PPT) backbone based on 2,5-disubstituted terephthalic acid and large-sized hole-transporting groups exhibited either layered or nematic-like mesophase structure. The spatial ordering in the mesophase structure has shown excellent photorefractive responses for transmission and reflection grating geometries.