利用相转移催化剂(PTC)一步合成了聚(2,5-二丁氧基对苯乙炔)。研究了PTC种类、用量、反应时间、温度和碱浓度对反应产率的影响,并对产物的结构和性能进行了分析。初步探讨了其聚合机理。实验结果表明:季铵盐的催化效果优于聚乙二醇,二甲亚砜、苯等可作为有机相用于聚合反应。碱浓度为50％、反应温度为60℃时,产物在硝基苯中具有较好的溶解性。经碘掺杂后导电率达9.6×10~(-2)S·cm~(-1)。 Poly (2,5-dibutoxy p-phenylacetylene) was synthesized in one step using phase transfer catalyst (PTC). The effects of PTC type, dosage, reaction time, temperature and alkali concentration on the reaction yield were investigated. The structure and properties of the product were also analyzed. Preliminary discussion of its polymerization mechanism. The experimental results show that the catalytic effect of quaternary ammonium salt is better than that of polyethylene glycol, dimethyl sulfoxide, benzene and so on. It can be used as organic phase in polymerization reaction. The alkali concentration of 50%, the reaction temperature is 60 ℃, the product has good solubility in nitrobenzene. After iodine doping, the conductivity is 9.6 × 10 -2 S · cm -1.