Synthesis of Monodisperse Pheyl-capped Oligoaniline Pentamer and Hexamer in the Leucoemeraldine Oxidation State and EB State and Its UV Studies

Abstract

Abstract: Aniline pentamer and hexamer in the leucoemeraldine oxidation state were synthesized through a novel method. The method was accomplished by the reaction of parent aniline tetramer in the pernigraniline oxidation state with diphenylamine and N-phenyl-1,4-phenylenediamine in the leucoemeraldine oxidation state respectively. The oligomers in the leucoemeraldine oxidation state were characterized by IR, NMR, elemental analysis and MALDI-MS. Aniline pentamer and hexamer in the emeraldine oxidation state were synthesized by the oxidation of Ag₂O in DMF. It was found that some fragmentation occurred when the pentamer and hexamer were oxidized by (NH₄)₂S₂O₈and FeCl₃·6H₂O. The pentamer and hexamer in the emeraldine oxidation state was studied by UV/V is spectra. The relative intensity of exciton peak for pentaaniline showed a little increase compared with that of hexaaniline.

Key words: Oxidative coupling reaction, Polyaniline, Oligomer, Electroactive polymers

CLC Number:

O631

TrendMD:

GAO Jun-Bo, LI Ke, SUN Hui, YU You-Hai, WANG Ce, WU Zhong-Wen, ZHANG Wan-Jin, JI Yi-Ping . Synthesis of Monodisperse Pheyl-capped Oligoaniline Pentamer and Hexamer in the Leucoemeraldine Oxidation State and EB State and Its UV Studies[J]. Chem. J. Chinese Universities, 1999, 20(12): 1960.

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Synthesis of Monodisperse Pheyl-capped Oligoaniline Pentamer and Hexamer in the Leucoemeraldine Oxidation State and EB State and Its UV Studies

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