Solution processability of the precursor molecules is a major issue owing to their limited solubility for the synthesis of conjugated polymers. Therefore, we favour the solvent free solid state chemical oxidative polymerization route for the synthesis of diketopyrrolopyrrole (DPP) based donor-acceptor (D−A) type conjugated polymers. D−A type polymer Poly(S-OD-EDOT) which contains DPP coupled with EDOT donor units is synthesized via solid state polymerization method. The polymer is employed as an active layer for organic field-effect transistors to measure charge transport properties. The Polymer shows good hole mobility 3.1×10^-2 cm² V⁻¹ s⁻¹, with a on/off ratio of 1.1×10³.

前体分子的溶液可加工性是主要问题，因为它们在共轭聚合物合成中的溶解度有限。因此，我们倾向于使用无溶剂的固态化学氧化聚合路线来合成基于二酮吡咯并吡咯（DPP）的供体-受体（DA）型共轭聚合物。通过固态聚合法合成含有DPP和EDOT供体单元的D-A型聚合物Poly（S-OD-EDOT）。该聚合物用作有机场效应晶体管的活性层，以测量电荷传输性能。该聚合物显示出良好的空穴迁移率3.1×10 ^-2 cm ² V ^-1 s ^-1，开/关比为1.1×10 ³。