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Whole-aryl-cluster luminescent polymer with microporous structure and preparation method of whole-aryl-cluster luminescent polymer

A technology of light-emitting polymer and microporous structure, applied in light-emitting materials, chemical instruments and methods, etc., can solve the problems of deactivation of excited states, poor anti-solvent performance, unsatisfactory quantum yield, etc., and achieve good mechanical properties, Good resistance to solvent corrosion

Active Publication Date: 2021-06-04
SANMING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Π electron cloud space volume of the luminescent group composed of isolated double bonds in non-traditional light-emitting polymers is not large, and the degree of spatial conjugation is limited; and most non-traditional light-emitting materials have a large number of alkyl structures, and the luminescent groups in their excited states are easy to pass through. Non-radiative transitions such as vibrations lead to deactivation of excited states, often with suboptimal quantum yields
The light-emitting unit of the aromatic structure is beneficial to obtain a higher quantum yield due to its larger conjugated structure; Such functional groups are not stable in series of special environments such as acids, alkalis, and high humidity, which will cause unstable luminescence performance; at the same time, linear / branched polymers have poor solvent resistance, In actual application, it is easily corroded and dissolved by solvents, which affects performance

Method used

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  • Whole-aryl-cluster luminescent polymer with microporous structure and preparation method of whole-aryl-cluster luminescent polymer
  • Whole-aryl-cluster luminescent polymer with microporous structure and preparation method of whole-aryl-cluster luminescent polymer
  • Whole-aryl-cluster luminescent polymer with microporous structure and preparation method of whole-aryl-cluster luminescent polymer

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Experimental program
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Effect test

Embodiment 1

[0033] Preparation of all-aryl cluster light-emitting polymers with microporous structure: Vinyl-substituted triphenyltriazine and divinylbenzene were used as reaction monomers, and vinyl-substituted triphenyltriazine (M-TRZ) (670mg, 2mmol) and divinylbenzene (292mg, 2mmol), that is, dissolve in 3ml tetrahydrofuran according to the molar ratio of 50:50, that is, the usage amount of tetrahydrofuran is added according to the total mass ratio of monomers as 0.32g / ml; then add 0.13 mg of azobisisobutyronitrile (AIBN) is used as the initiator, that is, the amount of the initiator AIBN is added according to 0.01% of the total moles of the reaction monomers; the reaction is stirred at a temperature of 50° C. for 48 hours in a nitrogen atmosphere, and the obtained product is first precipitated. Analyzed in methanol, the filtered solid was extracted with dichloromethane for 48 hours, and vacuum-dried to obtain a light yellow solid powder, which was the target polymer (a fully aryl clust...

Embodiment 2

[0036] Preparation of all-aryl cluster light-emitting polymers with microporous structure: Vinyl-substituted triphenyltriazine and divinylbenzene were used as reaction monomers, and vinyl-substituted triphenyltriazine (M-TRZ) And divinylbenzene, be dissolved in tetrahydrofuran according to the molar ratio of 5:95, promptly the consumption of tetrahydrofuran is 2g / ml to add according to monomer total mass ratio; Add azobisisobutyronitrile (AIBN) as initiator again, The amount of the initiator AIBN is added according to 1% of the total moles of the reaction monomers; the reaction is stirred and reacted at 100°C in a nitrogen atmosphere for 96 hours, and the obtained product is first precipitated in methanol, and the filtered solid is then extracted with dichloromethane for 72 hours. The light yellow solid powder obtained by vacuum drying is the target polymer (a whole aryl cluster light-emitting polymer with a microporous structure).

Embodiment 3

[0038] Preparation of all-aryl cluster light-emitting polymers with microporous structure: Vinyl-substituted triphenyltriazine and divinylbenzene were used as reaction monomers, and vinyl-substituted triphenyltriazine (M-TRZ) And divinylbenzene, be dissolved in tetrahydrofuran according to the molar ratio of 75:25, the consumption of tetrahydrofuran is 0.01g / ml to add according to monomer total mass ratio; Add azobisisobutyronitrile (AIBN) as initiator again, The amount of the initiator AIBN is added according to 2% of the total moles of the reaction monomers; the reaction is stirred and reacted at 50° C. in a nitrogen atmosphere for 4 hours, and the obtained product is first precipitated in methanol, and the filtered solid is then extracted with dichloromethane for 6 hours. The light yellow solid powder obtained by vacuum drying is the target polymer (a whole aryl cluster light-emitting polymer with a microporous structure).

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Abstract

The invention relates to a total aryl cluster luminescent polymer with a microporous structure and a preparation method thereof, vinyl-substituted triphenyltriazine and divinyl benzene are used as reaction monomers, azodiisobutyronitrile is used as an initiator, the initiator is added into the reaction monomers, and the total aryl cluster luminescent polymer with the microporous structure is obtained through reaction. According to the method, the fluorescent light-emitting copolymer with relatively high quantum yield and cluster light-emitting characteristics is prepared by adopting a free radical polymerization mode, and the variety of known cluster light-emitting polymers is expanded; besides, a plurality of cross-linked structures exist in the polymer, and a large number of microporous structures are formed on the surfaces and in the polymer particles, so that the obtained polymer has potential application prospects in the fields of display, detection, gas adsorption separation and the like.

Description

technical field [0001] The invention relates to the field of light-emitting materials, in particular to a whole aryl cluster light-emitting polymer with a microporous structure and a preparation method thereof. Background technique [0002] Fluorescent luminescent materials have important applications in the field of optoelectronics as lighting and display carriers. After different modification methods, they can also be used as ion detection and biological imaging materials. So far, through different molecular structure designs, researchers have adopted different design strategies based on conjugated aromatic units to obtain a series of organic light-emitting materials such as fluorescence, phosphorescence, delayed fluorescence, and room temperature phosphorescence. In recent years, some studies have found that polyurethane, starch, polymaleic anhydride, polyimide and other non-traditional fluorescent polymers do not contain aromatic chromophores, but they also exhibit fluor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/14C08F212/36C09K11/06
CPCC08F212/26C08F212/36C09K11/06C09K2211/1425C09K2211/1466
Inventor 赵炎冯荣荣洪家英林来松
Owner SANMING UNIV
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