Solvothermal synthesis of high molecular weight dithienogermole containing conjugated polymers

Dithienogermole-diphthalimide, a new molecule, and dithienogermole-dithiadiazole alternate polymers were synthesized by the solvothermal method. Optical properties and molecular weight were investigated by UV–Vis absorption spectroscopy and Gel Permeation Chromatography. Compared with the results achieved by the previously reported normal heating method, these polymers reported here exhibited similar optical properties and possess higher molecular weight. Synthesis and characterization of a new dithienogermole-diphthalimide and dithienogermole-dithiadiazole alternate polymers via the solvothermal method is reported.