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Fluorescent material with piezochromism and slovatochromism and preparation method thereof

A fluorescent material and lyochromic technology, applied in the field of fluorescent materials, to achieve the effect of simple steps, reasonable and feasible synthetic route, and mild conditions

Pending Publication Date: 2021-05-11
GUIZHOU MINZU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, currently there are still few fluorescent materials with both lyochromism and pressurization properties. Therefore, it is of great significance to design and synthesize new fluorescent materials with both lyochromism and pressurization properties.

Method used

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  • Fluorescent material with piezochromism and slovatochromism and preparation method thereof
  • Fluorescent material with piezochromism and slovatochromism and preparation method thereof
  • Fluorescent material with piezochromism and slovatochromism and preparation method thereof

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Effect test

Embodiment 1

[0050] This embodiment provides a fluorescent material with piezochromism and lyochromism, including cyano-substituted p-phenylene vinylene compounds. The structural formula of the cyano-substituted p-phenylene vinylene compounds is as follows:

[0051]

[0052] The fluorescent material exhibits orange solid-state fluorescence in the initial state, and red solid-state fluorescence after grinding, and then recovers the orange solid-state fluorescence in the initial state after being heated and melted at high temperature. As the polarity of the solvent increases in the fluorescent material, the maximum fluorescence emission peak gradually red shifts.

[0053] In addition, this embodiment also provides a method for preparing the above fluorescent material with piezochromism and lyochromism, including the following steps:

[0054] The synthesis of step 1, intermediate p-phenylene dibutyl ether

[0055] Take 10mmol of hydroquinone and 30mmol of potassium carbonate into a two-ne...

Embodiment 2

[0071] This embodiment provides a fluorescent material with piezochromism and lyochromism, including cyano-substituted p-phenylene vinylene compounds. The structural formula of the cyano-substituted p-phenylene vinylene compounds is as follows:

[0072]

[0073] The fluorescent material exhibits orange solid-state fluorescence in the initial state, and red solid-state fluorescence after grinding, and then recovers the orange solid-state fluorescence in the initial state after being heated and melted at high temperature. As the polarity of the solvent increases in the fluorescent material, the maximum fluorescence emission peak gradually red shifts.

[0074] In addition, this embodiment also provides a method for preparing the above fluorescent material with piezochromism and lyochromism, including the following steps:

[0075] The synthesis of step 1, intermediate p-phenylene dibutyl ether

[0076] Take 8mmol of hydroquinone and 30mmol of potassium carbonate into a two-nec...

Embodiment 3

[0092] This embodiment provides a fluorescent material with piezochromism and lyochromism, including cyano-substituted p-phenylene vinylene compounds. The structural formula of the cyano-substituted p-phenylene vinylene compounds is as follows:

[0093]

[0094] The fluorescent material exhibits orange solid-state fluorescence in the initial state, and red solid-state fluorescence after grinding, and then recovers the orange solid-state fluorescence in the initial state after being heated and melted at high temperature. As the polarity of the solvent increases in the fluorescent material, the maximum fluorescence emission peak gradually red shifts.

[0095] In addition, this embodiment also provides a method for preparing the above fluorescent material with piezochromism and lyochromism, including the following steps:

[0096] The synthesis of step 1, intermediate p-phenylene dibutyl ether

[0097] Take 10mmol of hydroquinone and 25mmol of potassium carbonate into a two-ne...

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Abstract

The invention relates to a fluorescent material with piezochromism and slovatochromism and a preparation method thereof, and belongs to the technical field of fluorescent materials. The fluorescent material with the piezochromism and the slovatochromism comprises a cyano-substituted p-phenylenevinylene compound, and the structural formula of the cyano-substituted p-phenylenevinylene compound is shown in the specification. The invention further discloses a preparation method of the fluorescent material with the piezochromism and the slovatochromism. The fluorescent material has slovatochromism and piezo-chromism performance at the same time, and compared with an existing fluorescent material, the application range is wider, and popularization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of fluorescent materials, and in particular relates to a fluorescent material with piezochromism and lyochromism and a preparation method thereof. Background technique [0002] Generally speaking, organic color-changing materials are realized by changing the chemical structure of compounds, but the incompleteness and irreversibility of solid-state chemical reactions make the synthesis of such piezochromic materials difficult. Therefore, it is becoming more and more important to make molecules exhibit fluorescent piezochromic behavior by adjusting the molecular packing of small organic molecules. [0003] Piezofluorescent materials are a new class of force-stimuli-responsive smart materials, which change the color and intensity of molecular luminescence by changing the physical packing of molecules. This material has potential applications in the fields of micro-stress sensing, information storage, trademark...

Claims

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Application Information

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IPC IPC(8): C07C323/62C09K11/06C07C319/20
CPCC07C323/62C09K11/06C09K2211/1007
Inventor 侯学清何淑花罗迎春肖寒李云
Owner GUIZHOU MINZU UNIV
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