Synthesis and characterization of a new polyfluorene derivative with well-defined conjugation length

Abstract

We report on a new polyfluorene derivative which has nonlinear main backbone and well-defined conjugation length of three flourene units. The polymer was synthesized via Suzuki coupling reaction of 9,9'-dihexyl-2,7- fluorenediboronic acid and 2-bromofluorene connected by an alkyl ring which is perpendicular to the plane of the fluorene unit.