TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The organic solvent is mixture of N,N-dimethylformamide and triethylamine. The organic palladium is palladium acetate and the organic phosphorus ligand is tris-tolyl phosphine.    TECHNOLOGY FOCUS - POLYMERS - Preparation (claimed): Heck reaction of (E)-6,6'-dibromo-1H,1'H-(3,3')biindolylidene-2,2'-dione compound of formula (1) and N-(4-alkoxyphenyl)-N,N-bis(4-vinylphenyl)amine of formula (2), 10-alkyl-3,7-divinyl-10H-phenothiazine of formula (3) or 9-alkyl-3,6-divinyl-9H-carbazole of formula (4) is carried out in anaerobic environment in the presence of mixture of organic palladium and organic phosphorus ligand as catalyst, in organic solvent to obtain the conjugated polymer. The mol ratio of the organic palladium to organic phosphorus ligand is 1:2-1:20. Preferred Process: The Heck reaction is carried out at 90-110 degrees C for 48-72 hours. 6-Bromo-1H-indole-2,3-dione and 6-bromo-1,3-dihydro-indol-2-one are reacted in the presence of hydrochloric acid using acetic acid as solvent to obtain (E)-6,6'-dibromo-1H,1'H-(3,3')biindolylidene-2,2'-dione. The obtained compound is reacted with alkyl bromide of formula: Br-R1 in the presence of potassium carbonate and dimethylformamide to obtain the compound (1). Dichloromethane solution of alkoxy-substituted triphenyl amine of formula (4), N-alkyl substituted phenothiazine of formula (5) or N-alkyl carbazole of formula (6) is reacted with phosphorus oxy chloride in dimethylformamide in ice salt bath, and with methyltriphenylphosphonium bromide in presence of potassium t-butoxide or sodium hydride to obtain mixed liquid of dialdehyde derivatives of the compounds (4), (5) or (6) to obtain the compound corresponding to Ar. The conjugated polymer is added into methanol solution for precipitation, and the sediment is filter-collected. The sediment is filtered, cleansed with methanol and n-hexane in turn, and dissolved in chloroform number average molecular weight of dried to obtain pure conjugated polymer.