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聚邻甲苯胺的合成及物理化学性质 被引量:3

SYNTHESIS OF POLY-o-METHYLANILINE AND ITS PHYSICOCHEMICAL CHARACTERISTICS
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摘要 聚苯胺的导电性和电化学特性已被广泛地研究。最近,对苯胺衍生物的聚合物也开始了研究,如聚邻甲氧基苯胺、聚邻苯二胺和聚邻氨基酚,其中聚邻甲氧基苯胺是一种可溶性的导电高分子材料。为了探讨苯胺聚合的机理和苯胺上不同基团对聚苯胺性质的影响。 The electrolyte solution consisted of 1.5 mol L^(-1) HCl and 0.2 mol L^(-1) o-methylaniline was electrolysed at a constant potential by using two pieces of platinum as electrodes, the anodic potential was controlled at 0.4V(vs. SCE). A blue and cohesive film was formed at the anodic electrode, it was poly-o-methylaniline(poly-o-toluidine). Its ESR spectrum was characterized as a single narrowline. When a fresh synthesized poly-o-methylaniline(0.35V) was reduced to -0.22 V(vs.SCE), its conductivity decreased from 5.8×10^(-3) to 3.5×10^(-5) S cm^(-1), and its peak-to-peak linewidth △H_(p-p) increased from 1.94 G to 3.10 G. The film colour changed with the pH values of the solution and its electrode potentials. There are two anodic and two cathodic peaks on the cyclic voltammograms of poly-o-methylaniline in the 1,5 mol L^(-1) ZnCl_2 of pH 1.69,the anodic and cathodic peaks at more positive potentials shift toward the negative potentials with increasing pH values. At pH 3.89, only one anodic peak and one cathodic peak on cyclic voltammograms are remained. The peak potentials and peak currents of poly-o-methylaniine in the different pH values are independent/of cycles.
出处 《物理化学学报》 SCIE CAS CSCD 北大核心 1989年第3期270-273,共4页 Acta Physico-Chimica Sinica
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参考文献2

  • 1郭景东,物理化学学报,1988年,4卷,505页
  • 2穆绍林,物理化学学报,1988年,4卷,14页

同被引文献8

  • 1张爱强,陈衍珍,田昭武.聚邻氨基酚-Cu^+膜电极的电催化效应[J].物理化学学报,1993,9(4):523-527. 被引量:3
  • 2李根喜,方惠群,陈洪渊.聚苯胺修饰电极制备过程中几个问题的探讨[J].分析试验室,1994,13(3):16-20. 被引量:7
  • 3王雪琳,杨秋霞,罗秀梅.电聚合邻苯二胺薄膜的研究[J].山东建材学院学报,1996,10(4):19-24. 被引量:5
  • 4董绍俊.聚合物薄膜化学修饰电极[J].应用化学,1986,3(6):1-1.
  • 5郭景东 陈衍珍 等.邻苯二胺、邻氨基酚的电化学聚合及聚合的膜性质[J].物理化学学报,1988,4(5):505-505.
  • 6Zoran Mandic. Ljerka Duic, Polyaniline as an electrccatalytic material. Journal of Electroanalytical Chemistry.1996, 403: 133-141.
  • 7Cesar Barhero, Juana J Silber. Leonides Sereno. Formation of a novel, electroactive film by electropolymerization of orthoaminophenol. J Electroanal Chem, 1989, 263: 333-352.
  • 8郭景东,陈衍珍,田昭武.邻苯二胺、邻氨基酚的电化学聚合及聚合的膜性质[J]物理化学学报,1988(05).

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