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可溶性与不可溶性聚苯胺的红外与Raman光谱研究(英文) 被引量:2

Infrared and Raman spectra of soluble and insoluble polyaniline
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摘要 本文比较了可溶性与不可溶性聚苯胺的红外吸收光谱与 Raman 光谱,表明两种聚苯胺在结构上有明显差别。可溶性聚苯胺的主要红外特征峰频率向高频方向移动,吸收带变窄,肩峰清晰可辨。对应于醌基团振动的1595cm^(-1)谱线相对于苯基团振动的1499cm^(-1)谱线强度减弱,1300cm^(-1)谱峰消失。表明可溶性聚苯胺中醌结构单元的数量少,而且含有偶氮基团 N=N 伸缩振动的特征吸收峰1450cm^(-1)。比较两者的 Raman 光谱也给出了相同的结果。可溶性聚苯胺中相对于氧化单元中醌结构的特征峰1566cm^(-1)谱线比相对于还原单元中苯结构的特征峰1620cm^(-1)谱线强度弱得多,也表明可溶性聚苯胺比不可溶性聚苯胺含有较少的醌结构。根据聚苯胺导电机制的质子化模型,由红外与Raman 光谱中相应谱的相对强度的差别可以估计,可溶性聚苯胺具有氧化型与还原型交替结构,质子化程度较低,仅约15%,因此电导率显著下降。 The different in structure between soluble and insoluble poly- aniline has been determined by infrared and Raman spectroscopy.The soluble polyaniline prepared by the chemical oxidation of aniline in acidic media, p-toluenesulfonic(TSA),contained fewer quinoid units resulting in the low level of protonation and low conductivity.
出处 《光散射学报》 1992年第1期45-50,共6页 The Journal of Light Scattering
关键词 聚苯胺 红外光谱 喇曼效应 散射谱 polyaniline infrared spectra Raman spectra
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同被引文献16

  • 1杨渊,刘小珍,宋玲玲,谢以璋,俞亚钧.不同掺杂态聚苯胺的合成及其红外光谱的研究[J].上海应用技术学院学报(自然科学版),2007,7(1):18-22. 被引量:11
  • 2Chiang, J.C., MacDiarmid, A.G. Polyaniline: Protonic Acid Doping of the Emeraldine Form to the Metallic Regime[J]. Synth. Met., 1986,13, 193.
  • 3MacDiarmid, A.G., Yang, L.S., Huang, W.S et al. Polyaniline: Electrochemistry and Application to Rechargeable Batteries[J]. Synth. Met., 1987, 18, 393.
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  • 5C. J. Cattena, R.A. Bustos-Marun, H.M. Pastawski. Crucial role of decoherence for electronic transport in molecular wires: Polyaniline as a case study[J]. Physical Review B, 2010, 82, 144-201.
  • 6Khadijeh Ghanbari, Mir Fazlollah Mousavi,, Mojtaba Shamsipur, et al. Synthesis ofpolyaniline/graphitecomposite as a cathode of Zn-polyaniline rechargeable battery[J]. Journal of Power Sources, 2007(170): 513-519.
  • 7Hassan Karami, Mir Fazlollah Mousavi, Mojtaba Shamsipur. A new design for dry polyaniline rechargeable batteries[J]. Journal of Power Sources, 2003 (117): 255-259.
  • 8Abdelaziz Rahy, Duck Joo Yang. Synthesis of highly conductive polyaniline nanofibers[J]. Materials Letters, 2008, 62(28): 4311-4314.
  • 9Ningning Zhu, Zhu Chang, Pingang He, Yuzhi Fang. Electrochemically fabricated polyaniline nanowire-modified electrode for voltammetric detection of DNA hybridization [J]. Electrochimica Acta,2006,51(18):3758-3762.
  • 10Liuyun Chen, Yanhong Tang, Ke Wang, Chengbin Liu. Direct electrodeposition of reduced graphene oxide on glassy carbon electrode and its electrochemical application [J]. Electrochem. Commun.,2011,13(2):133-137.

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