Synthesize of a novel electrochromic material based on 4,4' bipyridine

In this stud y, PAMAM dendrimer has been covalently grafted on 1-1 bis(prpylamine)-4,4'-bipyridylium dibromide via the reaction of amine group with the cynuric chloride, with a 1:3 ratio to yield electrochromic dye. The electrochromic dye based on 4,4'-bipyridyl was characterized by FTIR and NMR. The electrochemical properties of synthesized 4,4'-bipyridyl-functionalized dendrimers were investigated using cyclic voltammetry in a 0.1 M electrolyte HCl.

Keywords:

Electrochromic- 4 , 4'-bipyridyl- Dendrimer