Synthesis and characterization of highly efficient and thermally stable diphenylamino‐substituted thiophene stilbene chromophores for nonlinear optical applications

Highly nonlinear chromophores with good thermal stabilities (> 250 °C) are required if organic polymeric materials are to be developed for electro‐optical (EO) applications. The synthesis and characterization of highly efficient and thermally stable diphenylamino‐substituted thiophene stilbenes (e.g., see Figure) are reported, one of which was used to form a high‐EO‐coefficient composite with a polyquinoline. magnified image