提出了一条合成还原态的苯基封端聚苯胺齐聚物的新方法 :即苯胺二聚体的 Schiff碱或苯胺三聚体的 Schiff碱在酸性溶液中缓慢水解 ,形成聚苯胺二聚体和三聚体的盐酸盐 ,这些盐酸盐与二苯胺或 N-苯基 -对苯二胺反应 ,经苯肼还原 ,生成还原态的苯基封端的聚苯胺三聚体和四聚体 .用红外、核磁、元素分析和基底辅助激光解吸质谱对其进行了表征 ,并用紫外光谱对还原态的三聚体和四聚体的化学氧化过程进行了跟踪研究 A new method for the synthesis of phenyl-terminated polyaniline oligomers was proposed: Schiff base of aniline dimer or Schiff base of aniline trimer slowly hydrolyzed in acidic solution to form polyaniline dimer and The trimer hydrochloride, which is reacted with diphenylamine or N-phenyl-p-phenylenediamine, is reduced with phenylhydrazine to yield reduced phenyl-terminated polyaniline trimers and tetramers. The results were characterized by IR, 1HNMR, elemental analysis and substrate-assisted laser desorption mass spectrometry. The chemical oxidation process of the reduced trimer and tetramer was also studied by UV spectrum