Extended isoindigos as building blocks for developing D–A-type conjugated polymers

Abstract

By using 5-bromo-N-tetradecylindolin-2-one and different dialdehydes in a double Knoevenagel condensation procedure, three new-extended isoindigo-based monomers (3, 5 and 7) were synthesized. -Extended isoindio-based monomers were coupled with 2,2-bithiophene to...