高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1124.

• 论文 • 上一篇    下一篇

相转移催化法合成聚(2,5-二丁氧基对苯乙炔)

刘承美, 廖春花, 过俊石, 谢洪泉   

  1. 华中理工大学化学系, 武汉, 430074
  • 出版日期:1995-07-24 发布日期:1995-07-24

Studies on Synthesis of Poly(2,5-dibutoxy-p-phenylene vinylene) by Phase-Transfer-Catalysis Method

LIU Cheng-Mei, LIAO Chun-Hua, GUO Jun-Shi, XIE Hong-Quan   

  1. Department of Chemistry, Huazhong University of Science and Technology, Wuhan, 430074
  • Online:1995-07-24 Published:1995-07-24

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被引次数

1

摘要： 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9.6×10-2S·cm-1。

关键词: 导电高分子, 聚(2, 5-二丁氧基对苯乙炔), 相转移催化剂

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

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