Copolymerization is one of the important modification methods of polyaniline (PANI). But due to the synthesis mechanism and preparation condition, the synthesized polyaniline copolymers are mainly diblock or triblock copolymers in the past few decades. In this research, a method for synthesizing linear polyethylene glycol-polyaniline multi-alternating block (more than triblock) copolymer (PEG-PANI) was proposed. The results of FT-IR, ¹HNMR, UV, XRD, DSC and TG analyses demonstrated that PEG-PANI was successfully synthesized. And the PEG-PANI copolymer not only has a liable adjustability in conductivity by way of adjusting the content of PANI, but also has a good solubility in polar solvents such as DMF and DMSO.

共聚是聚苯胺（PANI）的重要改性方法之一。但由于合成机理和制备条件的不同，近几十年来合成的聚苯胺共聚物主要是二嵌段或三嵌段共聚物。本研究提出了一种合成线性聚乙二醇-聚苯胺多交替嵌段（多于三嵌段）共聚物（PEG-PANI）的方法。FT-IR、¹ HNMR、UV、XRD、DSC和TG分析结果表明PEG-PANI合成成功。并且PEG-PANI共聚物不仅可以通过调节PANI的含量来调节电导率，而且在DMF、DMSO等极性溶剂中具有良好的溶解性。