| abstract |
The invention discloses a maleimide derivative and a preparation method and application thereof. The general structural formula of the maleimide derivatives is shown in formula I: wherein, R 1 and R 2 are each independently selected from arylamine groups of 6 to 30 carbon atoms, aryl groups of 6 to 30 carbon atoms, substituted aryl groups of 6 to 30 carbon atoms, and 5 to 50 ring atoms At least one of the substituted aromatic heterocyclic groups; R is selected from hydrogen atoms, alkyl groups of 1 to 20 carbon atoms, aryl groups of 6 to 30 carbon atoms, substituted aryl groups of 6 to 30 carbon atoms at least one of a substituted aromatic heterocyclic group of 5 to 50 ring atoms. The maleimide derivatives of the present invention introduce a plurality of electron-rich groups, and can effectively separate the highest occupied orbital energy level and the lowest empty orbital energy level through the modification of groups with different electron donating abilities, which not only reduces the single weight The energy level difference between the state and the triplet state is realized, and the light emission of different colors is realized. |