TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The preparation method of the 9, 10-di (4, 4, 5, 5- tetramethyl-1, 3, 2- dioxapentaborane) anthracene or derivative (I) involves dissolving 9, 10-di,di-bromo anthracene or derivative compound of formula (IV) and n-butyllithium in organic solvent at (-70)-(-85) degrees C. The mixture is added with a substituted 2-isopropoxy-4, 4, 5, 5-tetramethyl-1, 3, 2- dioxapentaborane compound of formula (VI), and the added mixture is reacted at 10-40 degrees C for 12-48 hours to obtain the 9, 10-di (4, 4, 5, 5- tetramethyl-1, 3, 2- dioxapentaborane) anthracene or derivative (I). The polymer material preparing method further involves adding de-ionized water and methylbenzene to polymer solution of anthracene and pyrrole pyrroledione unit after performing a suzuki reaction to obtain an organic phase. The obtained phase is decompressed for distillation, and the distillated product is dipped with an absolute methanol for extracting and separated a solid. The extracted solid is baked to obtain a solid powder, and the powder is dissolved in chloroform. The dissolved powder is added with a neutral alumina and allowed to pass through a chromatographic column for removing the catalyst. The mixture is passed to rotary steaming equipment, and the mixture is dipped with a methanol solvent. The resulting mixture is stirred for 1-10 hours and collected, baked and extracted using an extractor to obtain a pure polymer (III). Preferred Components: The catalyst is palladium-tetrakis(triphenylphosphine), tris(dibenzylideneacetone)dipalladium/tri(o-tolyl)phosphine or biss(triphenylphosphine)palladium chloride. The alkali solution is chosen from sodium hydroxide solution, sodium bicarbonate solution, sodium carbonate solution and tetraethyl ammonium hydroxide solution. The solvent is chosen from methylbenzene, glycol dimethyl ether, tetrahydrofuran, diethyl ether, dichloromethane, trichloromethane and ethyl acetate. The organic solvent is tetrahydrofuran, diethyl ether, dichloromethane, trichloromethane or ethyl acetate. Preferred Composition: The mol ratio of 9, 10 di,di,bromo anthracene or derivative compound to n-butyllithium is 1:2-1:4. The mol amount of organic solvent is 2-4 times of 9, 10 di,di,bromo anthracene or derivative. The molar concentration of catalyst to the 9, 10-di(4, 4, 5, 5tetramethyl-1, 3, 2- dioxapentaborane) anthracene or derivative is 0.5-10%.The usage of alkali solution is 5-10 times of 9, 10-di-(4, 4, 5, 5- tetramethyl-1, 3, 2dioxapentaborane) anthracene or derivative. The suzuki reaction temperature is 60-100 degrees C for 12-72 hour.