| abstract |
A method of fractionating a semiconducting polymer wherein the semiconducting polymer comprises polymer chains comprising a defect group, the method comprising the steps of reacting the polymer chains comprising a defect group to form polymer chains comprising separating groups; and separating the polymer chains comprising the separating groups from the semiconducting polymer. The separating group may be a binding group X capable of binding to a solid substrate material 305 , for example particulate silica. |