化学学报 ›› 2008, Vol. 66 ›› Issue (3): 385-390. 上一篇    下一篇

研究论文

四磺基铁(II)酞菁生物模拟合成导电聚苯胺

胡兴*, 1,邹国林2,林敏1,赵庆1,李湘1   

  1. (1怀化学院生物工程系 怀化 418008)
    (2武汉大学生命科学学院 武汉 430072)
  • 投稿日期:2007-05-08 修回日期:2007-07-02 发布日期:2008-02-14
  • 通讯作者: 胡兴

Biomimetic Synthesis with Iron (II) Tetrasulfophthalocyanine of a Conducting Polyaniline

HU Xing*,1; ZOU Guo-Lin2; LIN Min1; ZHAO Qing1; LI Xiang1   

  1. (1 Department of Bioengineering, Huaihua University, Huaihua 418008)
    (2 College of Life Sciences, Wuhan University, Wuhan 430072)
  • Received:2007-05-08 Revised:2007-07-02 Published:2008-02-14
  • Contact: HU Xing

利用四磺基铁(II)酞菁(FeTSPc)在木质素磺酸钠模板体系中模拟过氧化物酶催化合成导电聚苯胺/木质素磺酸复合物(PANI/LGS)。讨论了溶液pH 值、苯胺浓度、LGS浓度、H2O2浓度及反应时间对FeTSPc催化聚合反应产物的影响。结果表明该反应具有明显的pH值依赖性,pH(1.0~4.0)是合成导电聚苯胺所必须需的,其最适pH值为1.5。用元素分析法、紫外-可见分光光度法、FTIR、循环伏安法、电导率测试、热重分析法等对PANI/LGS复合物表征, 结果表明该复合物具有较好的热稳定性和可逆的电化学活性。

关键词: 四磺基铁(II)酞菁, 聚苯胺, 生物模拟, 导电性, 木质素磺酸

A new biomimetic route for the synthesis of a conducting polyaniline (PANI)/lignosulfonate (LGS) complex is presented. Iron (II) tetrasulfophthalocyanine (FeTSPc) is used to polymerize aniline in the presence of a natural polyelectrolytes template, LGS. The effects of pH, concentrations of aniline, LGS, H2O2, and reaction time on polymerization reaction of aniline were studied. The results show that the polymerization of aniline is strongly pH-dependent in this case. A wider range at low pH (1.0~4.0) was required to produce the conducting PANI. The optimal pH value is 1.5. UV–vis absorption, FTIR, elemental analysis, conductivity, cyclic voltammetry, and thermogravimetric analysis studies all confirm the thermally stable and reversible electroactive form of PANI complex.

Key words: iron (II) tetrasulfophthalocyanine, polyaniline, biomimetic, conductivity, lignosulfonate