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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (9): 911-916. 上一篇    下一篇

研究论文

9,9-二辛基芴的电化学聚合

徐景坤*,1，张雅娟1,2，魏振宏1，周卫强1，赵继全2   

  1. (1江西科技师范学院江西省有机功能分子重点实验室 南昌 330013)
    (2河北工业大学化工学院 天津 300130)
  • 投稿日期:2005-09-14 修回日期:2006-01-18 发布日期:2006-05-15
  • 通讯作者: 徐景坤

Electrochemical Polymerization of 9,9-Dioctylfluorene

XU Jing-Kun*,1, ZHANG Ya-Juan1,2, WEI Zhen-Hong1, ZHOU Wei-Qiang1, ZHAO Ji-Quan2   

  1. (1 Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013)
    (2 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130)
  • Received:2005-09-14 Revised:2006-01-18 Published:2006-05-15
  • Contact: XU Jing-Kun

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在三氟化硼乙醚(BFEE)中, 9,9-二辛基芴可以直接阳极氧化制备高质量聚(9,9-二辛基芴)膜, 其电导率为1×10－2 S/cm. 9,9-二辛基芴在BFEE中的起始氧化电位为1.25 V vs. SCE, 低于单体在0.1 mol/L Bu4NBF4的乙腈溶液体系中的起始氧化电位(1.52 V vs. SCE). BFEE中获得的聚(9,9-二辛基芴)膜具有良好的电化学性质. 聚合物部分溶于氯仿、四氢呋喃、二甲基亚砜等极性溶剂. FTIR和1H NMR表明聚合反应主要发生在2,7位. 荧光光谱表明聚合物是一种良好的蓝色荧光物质.

关键词: 导电高分子, 聚芴衍生物, 电化学合成, 三氟化硼乙醚

High quality poly(9,9-dioctylfluorene) films were synthesized electrochemically by direct oxidation of 9,9-dioctylfluorene in pure boron trifluoride diethyl etherate on stainless steel sheet, with polymer conductivity of 1×10－2 S/cm. The initiate oxidation onset of 9,9-dioctylfluorene in such medium was only 1.25 V vs. SCE, which was much lower than that determined in 0.1 mol/L Bu4NBF4 acetonitrile solution (1.52 V vs. SCE). Polymer obtained from this medium showed good electrochemical behavior and can be partly dissolved in chloroform, tetrahydrofuran, dimethylsulfoxide, etc. FTIR and 1H NMR spectral investigations indicated that the polymerization of monomer occurred mainly at 2,7 positions, and fluorescent spectral studies indicated that the polymer was a blue-light emitter.

Key words: conducting polymer, polyfluorenes, electrochemical polymerization, boron trifluoride diethyl etherate