中文摘要：

线性苯胺类低聚物及聚合物因其具有良好的电学活性及优异的环境稳定性，已经引起广泛的重视，大量的研究结果证明其在分子导线、电子器件和电化学制动器等方面具有极强的应用背景．由于其空间效应造成合成上的困难，致使其相对应的环状低聚物的合成尚未见报道．而环状分子因具有独特的孔穴结构，在基础与应用研究中已引起人们的广泛关注，

英文摘要：

A new electroactive poly（aryl ether ketone） macrocyclic oligmer with phenyl-capped tetramer was synthesized by the modified pseudo-high-dilution method, whose structure with a rigid molecular backbone contains a cavity of well-defined size. The oligomer was characterized with mass spectrometry, IR and 1H NMR, 13C NMR spectroscopies. Its redox property was checked by cyclic vohammetry and chemical oxidation process was monitored by UV spectroscopy. We found that it has a reversible electrochemical property like common oligoanilines. Combined with its well-defined structure, the oligmer is expected to act as a kind of host molecules which are capable of molecular recognition.