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Stimuli-responsive organic long afterglow material and preparation method and application thereof

A long afterglow material and responsive technology, which is applied in the direction of luminescent materials, organic chemistry, chemical instruments and methods, etc., to achieve simple synthesis, high yield, and realize the effect of programming multiple data encryption

Active Publication Date: 2020-12-01
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the development of organic ultra-long room temperature phosphorescence (OURTP) materials with excellent properties, that is, organic long-lasting materials, is facing great challenges.

Method used

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  • Stimuli-responsive organic long afterglow material and preparation method and application thereof
  • Stimuli-responsive organic long afterglow material and preparation method and application thereof
  • Stimuli-responsive organic long afterglow material and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: the synthesis of organic long afterglow material MBDPAC

[0039] Weigh the medicines, 9,9-diphenylacridine (1.0g), sodium hydride (0.14g) into a 100mL double-necked round bottom flask, add a stirring magnet, and use a double-row tube to evacuate and repeatedly blow in argon Inflate 3 times, and finally inflate the balloon. Set up the device, turn on the magnetic stirrer, add 30 mL of freshly distilled tetrahydrofuran (THF) solvent with a syringe to fully dissolve the drug, and stir the reaction at room temperature for 1.5 h. Quickly drop 0.45 mL of 1-bromo-2-methylbutane reagent into the vacuum-sealed flask, raise the temperature of the reaction system to 66° C., and react for 14 hours. The reaction solution was quenched with 50 mL of water, extracted with 3×40 mL of dichloromethane solution, the organic phase was collected and dried with anhydrous sodium sulfate, concentrated to obtain a crude product, and 0.96 g of a white solid product obtained by sepa...

Embodiment 2

[0044] Embodiment 2: the synthesis of organic long afterglow material MBDMAC

[0045] Weigh the medicine, 9,9-dimethylacridine (1.0g), sodium hydride (0.23g) into a 100mL double-necked round-bottom flask, add a stirring magnet, and use a double-row tube to evacuate and repeatedly blow in argon Inflate 3 times, and finally inflate the balloon. Set up the device, turn on the magnetic stirrer, add 30 mL of freshly distilled tetrahydrofuran (THF) solvent with a syringe to fully dissolve the drug, and stir the reaction at room temperature for 1.5 h. Quickly drop 0.5 mL of bromopropane reagent into the above-mentioned vacuum-tight flask, raise the temperature of the reaction system to 66° C., and react for 14 hours. The reaction solution was quenched with 50 mL of water, extracted with 3×40 mL of dichloromethane solution, the organic phase was collected and dried with anhydrous sodium sulfate, concentrated to obtain a crude product, and 1.1 g of a white solid product obtained by se...

Embodiment 3

[0050] Embodiment 3: Fabrication of Programmable Multiple Data Encryption Device

[0051] A flexible and transparent device with stimuli-responsive properties was obtained by printing the stimuli-responsive long-lasting material MBDPAC on a transparent PET substrate by screen printing technology. Cover the hollow template with encrypted information on the stimuli-responsive flexible transparent device, and then use ultraviolet light for photoactivation, or directly write (that is, photoactivate the material) encrypted information on the stimuli-responsive flexible transparent device with an X-ray pen, A stimulus-responsive flexible transparent device with encrypted information is fabricated.

[0052] Shine light on it and remove the light to read previously entered encrypted information. Oxygen fumigation or heating of the device can erase the input information and return to the original state, that is, the stimulus-responsive flexible transparent device. Data encryption can...

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Abstract

The invention discloses a stimuli-responsive organic long afterglow material and a preparation method and application thereof. The system material contains an excellent long-afterglow composition unitacridine unit, the material is endowed with excellent stimulation response characteristics by introducing an alkyl chain, the arrangement mode of molecules is effectively regulated and controlled under the action of external stimulation, and the performance of the organic long-afterglow material is improved. The material has excellent stimulation response characteristic and organic long afterglowperformance, and the system compound is easy and convenient to prepare, low in cost and good in stability, and can be used for constructing a programmable multi-data encryption device.

Description

technical field [0001] The invention relates to an organic photoelectric material and its preparation method and application, in particular to a stimulus-responsive organic long-lasting afterglow material and its preparation method and application. Background technique [0002] Long afterglow luminescent materials can still continue to emit light after the excitation source stops exciting. They can be used in low-light lighting, emergency instructions, building energy saving, intelligent transportation, information storage and display, etc., especially in the "excitation-free" conditions. It has broad application prospects in sensing and imaging, multiple data encryption and anti-counterfeiting. Compared with traditional inorganic materials, organic materials have the characteristics of wide source of raw materials, easy modification of molecular structure, simple preparation process, light weight, and flexibility, which well make up for the shortcomings of inorganic materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D219/02C09K11/06
CPCC07D219/02C09K11/06C09K2211/1029
Inventor 陶冶李慧陈润锋李欢欢黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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