A kind of method of raising OLED blue emitting material stability

A kind of method of raising OLED blue emitting material stability

  • CN 106,833,619 A
  • Filed: 12/23/2016
  • Published: 06/13/2017
  • Est. Priority Date: 12/23/2016
  • Status: Active Application
First Claim
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1. a kind of method of raising OLED blue emitting material stability, it is characterised in that using distyrene to blue-light-emittingMaterial is modified, and will be introduced on distyrene containing only the condensed ring rigid radical of C, H atom in the modifying process;

  • Including as followsStep:



    1)

    Blue emitting material and distyrene are added in the container with agitating device, logical nitrogen is vacuumized and is repeated 4-6It is secondary, add 10 times of volumes through the new steaming dimethylbenzene of letting nitrogen in and deoxidizing half an hour with syringe under nitrogen protection, react while stirring3-4 hours;



    2)

    Stop reaction, after reactant mixture is naturally cooled into room temperature, filter residue 2-4 rear and condensed ring of ethyl acetate rinseRigid compound is catalyst reaction 2-3 hours under argon gas protection environment of ethanol as solvent, lithium aluminium hydride reduction, obtains final product stabilizationProperty OLED blue emitting materials.

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