As a newly developed optical display material

electrochromic/electrofluorochromic dual functional polyamide/polyimide materials have wide prospects. However

the poor solubility of traditional polyamide/polyimide and the high environmental sensitivity of fluorescence limit the development of such materials. In this paper

we analyzed and summarized the diamine monomer containing triphenylamine structure used in electrochromic/electrofluorochromic in recent years and the corresponding polyimide based on the work of our group and other representative work. Moreover

we further analyzed the relationship between the structure and electrochromic/electrofluorochromic performance

especially focusing on the important role of triphenylamine structure in design. According to the different numbers of electroactive nitrogen atoms in the diamine monomer or structural unit

we classified into monovalent system and mixed valence system. The effects of the number of electroactive nitrogen atoms

the position of electroactive nitrogen atoms in the polymer

the number and position of fluorescent groups on the properties of electrochromic/electroluminescent dual functional materials are emphatically discussed. It is expected to provide a new idea for the preparation of high-performance electrochromic/electroluminescent dual functional materials.