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A kind of room temperature phosphorescent material based on synergistic effect of polymer and cucurbituril and preparation method thereof

A Room Temperature Phosphorescence, Synergistic Technology

Active Publication Date: 2022-07-05
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing room-temperature phosphorescent materials are inorganic materials, and most of them contain heavy metal ions or lanthanides and actinides. These heavy metals are not only toxic, but also harmful to the human body, and the resources are very scarce and the source channels are very limited. , which makes us have to consider the development of new room temperature phosphorescent materials to meet the existing needs

Method used

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  • A kind of room temperature phosphorescent material based on synergistic effect of polymer and cucurbituril and preparation method thereof
  • A kind of room temperature phosphorescent material based on synergistic effect of polymer and cucurbituril and preparation method thereof
  • A kind of room temperature phosphorescent material based on synergistic effect of polymer and cucurbituril and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0056] Preparation method of PH / CB[7] room temperature phosphorescent material;

[0057] A certain amount of polymer PH (degree of phosphorophore substitution 1.15%) (179.5mg, 1.0eq phosphorophore) and cucurbituril CB[7] (32.53mg, 1.0eq) were placed in a 250mL beaker in a stoichiometric ratio to polymerize Medium phosphorescent group: CB[7]=1:1 as a reference, add 100 mL of secondary water to dissolve and disperse by ultrasonic, and let stand for 2 hours after complete dissolution. Lyophilized to remove solvent water, the remaining solid is the solid supramolecular complex formed by polymer PH and cucurbituril CB[7] through host-guest inclusion, and then placed in a vacuum drying box to dry, drying temperature The temperature is 40°C, the desiccant is phosphorus pentoxide, and the PH / CB[7] room temperature phosphorescent material is obtained after complete drying.

Embodiment 3

[0059] Preparation method of PH / CB[8] room temperature phosphorescent material;

[0060] A certain amount of polymer PH (degree of phosphorophore substitution 1.15%) (177.6mg, 1.0eq phosphorophore) and cucurbituril CB[8] (18.38mg, 0.5eq) were placed in a 250mL beaker in a stoichiometric ratio to polymerize Medium phosphorescent group: CB[8]=2:1 for reference, add 150 mL of secondary water to dissolve and disperse by ultrasonic, and then let stand for 2 hours, put the obtained host-guest complex solution into a freeze dryer, freeze under vacuum conditions Dry to remove solvent water, and the remaining solid is the solid supramolecular complex formed by polymer PH and cucurbituril CB[8] through host-guest inclusion, and then placed in a vacuum drying oven for drying at a drying temperature of 40 °C. ℃, the desiccant is phosphorus pentoxide, and the PH / CB[8] room temperature phosphorescent material is obtained after complete drying.

Embodiment 4

[0062] Preparation method of PBr / CB[6] room temperature phosphorescent material;

[0063] A certain amount of polymer PBr (1.09% degree of phosphorophore substitution) (86.2mg, 1.0eq phosphorophore) and cucurbituril CB[6] (12.60mg, 1.0eq) were placed in an agate mortar in a stoichiometric ratio of Phosphorescent group in the polymer: CB[6]=1:1 for reference, then add a few drops of secondary water, grind until the mixture in the mortar is almost dry, loosen the solid sticking to the wall of the mortar with a spatula, Then add a few drops of secondary water and continue to grind, repeat this for more than 4 to 5 times, so that cucurbituril CB[6] and the phosphorescent group in the polymer PBr are fully contacted and bound, and after grinding, about 5 mL of secondary water is added to A suspension was obtained, the suspension was lyophilized in a freeze dryer to remove the solvent water, and a fluffy solid was obtained and placed in a vacuum drying oven for drying, the drying te...

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Abstract

The invention discloses a room temperature phosphorescent material based on the synergistic effect of a polymer and cucurbituril and a preparation method thereof, and relates to the field of pure organic room temperature luminescent materials. Through the macrocyclic cucurbituril CB[6], CB[7] or CB[8] and the host-guest interaction of the phosphorescent group in the polymer, the cucurbituril CB[6], CB[7] or CB[8] was successfully synthesized. It is introduced into the polymer, and the phosphorescent emission properties of the polymer are adjusted by the inclusion of the phosphorescent group by cucurbituril CB[6], CB[7] or CB[8], so that the polymer can obtain more excellent luminescent properties. . The supramolecular composite material is simple to prepare, does not require complicated and lengthy synthesis, is suitable for large-scale production and commercialization, and has great application prospects in real life.

Description

technical field [0001] The invention relates to the field of pure organic room temperature luminescent materials, in particular to the pure organic room temperature phosphorescence luminescence technology. Background technique [0002] In real life, luminescent materials have made indelible contributions to human daily life due to their unique luminescent properties and superior practical properties, and their development has attracted the attention of the majority of relevant scientific researchers. Among them, room temperature phosphorescent materials are one of many types of luminescent materials. They are stable, can be used at room temperature, and have long lifespans. They can be widely used in biosensing, cell imaging, and optoelectronics. However, most of the existing room temperature phosphorescent materials are inorganic materials, most of which contain heavy metal ions or lanthanide and actinide elements. These heavy metal elements are not only toxic and can cause...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06
CPCC09K11/06C09K2211/1425C09K2211/1466
Inventor 刘育许文文王丽华
Owner NANKAI UNIV
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