![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Novel nonlinear optical chromophore with strong electron donor and isolation groups on both sides were synthesized and characterized by mass spectrum and hydrogen nuclear magnetic resonance. Electro-optical polymers with different chromophore loading densities were prepared and showed us good thermal stabilities, all of their thermal decomposition temperature were higher than 250°C. Large EO coefficients were also obtained by second harmonic generation method 29, 47, and 72 pm/V for PU-C10, PU-C15, and PU-C20, respectively. Solvatochromism of polymer PU-C10 was also studied; the result indicated us that this kind of polymers could be used as solvent polarity indicator material.