Preparation method of fluorene block copolymer

The invention discloses a method for preparing a fluorene block copolymer by a one-pot method, which is characterized in that 2-(7-bromo-9, 9-dioctyl-9-H-fluorene-2-)-4, 4, 5, 5-tetramethyl-1, 3, 2-borane dioxide is used as a raw material, a non-fluorescent polymer with an iodobenzene structure is used as an initiator, and the fluorene block copolymer can be generated in one step through Suzuki coupling reaction. Compared with the conventional preparation method, the preparation method has simplified steps, is economical and environment-friendly, and is suitable for industrial large-scale production. 本发明公开了一种一锅法芴嵌段共聚物的制备方法，以2-（7-溴-9,9-二辛基-9-H-芴-2-）-4,4,5,5-四甲基-1,3,2-二氧硼烷为原料，以具有碘苯结构的非荧光聚合物为引发剂，通过铃木偶联反应可以一步生成芴嵌段共聚物。该制备方法相对以往制备方法，步骤简化，经济环保，适用于工业化放大生产。