Abstract: Poly(2,5-dibutoxy-p-phenylene vinylene) was prepared in "one pot" reaction by the aid of phase-transfer-catalyst (PTC). Effects of sort and amount of PTC, reaction time and temperature, and concentration of NaOH on polymer yield were studied. Properties of the product, such as solubility in different solvents, thermal properties, optical and electrical properties were investigated. The results indicated that the catalytical efficiency of quar-ternary ammonium salts was better than that of poly(ethylene glycol) with different molecular weights. Dimethyl sulfoxide(DMSO), benzene, toluene, could act as the organic phase. The optimum conditions: concentration of NaOH is 50%, reaction temperature is 60℃. The product could readily dissolve in nitrobenzene at its boiling point. The film cast from soluble product could be doped by iodine, ferric chloride, and concentrated sulfuric acid. Its conductivity was about 9. 6×10^-2S·cm^-1after I₂-doping.

Key words: Conductive polymer, Poly(2,5-dibutoxy-p-phenylene vinylene), Phase-transfer-catalyst