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POSS based polyionic liquid/rare earth fluorescent material and preparation method thereof

A technology of rare earth fluorescent materials and polyionic liquids, applied in the field of materials science, can solve the problems of difficult processing, poor light and thermal stability, etc., and achieve the effect of low cost, good thermal stability, and mild and controllable reaction conditions

Active Publication Date: 2019-02-22
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to propose a preparation method of POSS-based polyionic liquid / rare earth fluorescent material, and the rare earth complex and POSS functionalized ionic liquid are interacted by ion exchange reaction. In this method, polyionic liquid acts as The role of the bridge connects POSS with rare earth complexes to solve technical problems such as poor light and thermal stability and difficult processing of rare earth complexes in the prior art

Method used

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  • POSS based polyionic liquid/rare earth fluorescent material and preparation method thereof
  • POSS based polyionic liquid/rare earth fluorescent material and preparation method thereof
  • POSS based polyionic liquid/rare earth fluorescent material and preparation method thereof

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Embodiment 1

[0033] A POSS-based polyionic liquid / rare earth fluorescent material comprises a POSS-based polyionic liquid, and rare earth complexes are adsorbed around molecules of the POSS-based polyionic liquid, and the POSS-based polyionic liquid is obtained by reacting a POSS-based imidazole polymer.

[0034]The concrete preparation method of described POSS-based polyionic liquid / rare earth fluorescent material is:

[0035] (1) Synthesis of POSS-poly(1-vinylimidazole):

[0036] Dissolve 0.67mmol of mercapto POSS and 33.5mmol of 1-vinylimidazole monomer in 15mL of xylene, place in a flask, pass nitrogen gas for 1h, heat to 90°C, and reflux at this temperature, add 3.35mmol of The AIBN was reacted for 24 hours under a nitrogen atmosphere, cooled to room temperature, washed with methanol, ether and acetone, filtered, and dried in a vacuum oven at 70°C for 24 hours to obtain a polymer organic bridge precursor, namely the The POSS-poly (1-vinylimidazole) described above;

[0037] (2) Prep...

Embodiment 2

[0048] A POSS-based polyionic liquid / rare earth fluorescent material comprises a POSS-based polyionic liquid, and rare earth complexes are adsorbed around the molecules of the POSS-based polyionic liquid, and the POSS-based polyionic liquid is obtained by reacting a POSS-based imidazole polymer.

[0049] The concrete preparation method of described POSS-based polyionic liquid / rare earth fluorescent material is:

[0050] (1) Synthesis of POSS-poly(1-vinylimidazole):

[0051] Dissolve 0.67mmol of mercapto POSS and 33.5mmol of 1-vinylimidazole monomer in 15mL of xylene, place in a flask, pass nitrogen gas for 1h, heat to 90°C, and reflux at this temperature, add 3.35mmol of The AIBN was reacted under nitrogen atmosphere for 24 hours, cooled to room temperature, washed with methanol, ether and acetone solution respectively, filtered, and dried in a vacuum oven at 70°C for 24 hours to obtain a polymer organic bridge precursor, namely The POSS-poly(1-vinylimidazole);

[0052] (2) ...

Embodiment 3

[0061] A POSS-based polyionic liquid / rare earth fluorescent material comprises a POSS-based polyionic liquid, and rare earth complexes are adsorbed around the molecules of the POSS-based polyionic liquid, and the POSS-based polyionic liquid is obtained by reacting a POSS-based imidazole polymer.

[0062] The concrete preparation method of described POSS-based polyionic liquid / rare earth fluorescent material is:

[0063] (1) Synthesis of POSS-poly(1-vinylimidazole):

[0064] Dissolve 0.67mmol of mercapto POSS and 33.5mmol of 1-vinylimidazole monomer in 15mL of xylene, place in a flask, pass nitrogen gas for 1h, heat to 90°C and reflux at this temperature, add 3.35mmol of AIBN continued to react under nitrogen atmosphere for 24 hours, cooled to room temperature, washed with methanol, ether and acetone solution respectively, filtered, and dried in a vacuum oven at 70°C for 24 hours to obtain a polymer organic bridge precursor, namely the The POSS-poly (1-vinylimidazole) describe...

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Abstract

The invention provides a POSS based polyionic liquid / rare earth fluorescent material and a preparation method thereof. The POSS based polyionic liquid / rare earth fluorescent material is characterizedby comprising POSS based polyionic liquid, wherein rare earth complexes are adsorbed around molecules of the POSS based polyionic liquid; the POSS-based polyionic liquid is obtained by the quaternaryamination reaction of a POSS-based imidazole polymer. The preparation method has strong operability, mild experimental conditions and good reproducibility. The obtained POSS based polyionic liquid / rare earth fluorescent material has stable quality and very good photothermal performance.

Description

technical field [0001] The invention belongs to the field of materials science, and relates to a rare earth organic composite material, specifically a POSS-based polyionic liquid / rare earth fluorescent material and a preparation method thereof. Background technique [0002] Rare earth complexes are an important class of photofunctional materials with unique luminescent properties, which have the advantages of narrow emission band, high quantum yield, high color purity and long fluorescence lifetime. The energy transfer mechanism in rare earth complexes was first discovered by Weissman, also known as "antenna effect". These excellent luminescent properties of rare earth complexes make them widely used in medical testing, laser technology, photoluminescent devices, display applications, environmental monitoring, and security fields. However, the rare earth complexes themselves have defects such as poor light and thermal stability and poor machinability, which seriously limit ...

Claims

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Application Information

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IPC IPC(8): C09K11/06C09K11/02
CPCC09K11/025C09K11/06C09K2211/182
Inventor 李颖王钟育董能王霞
Owner UNIV OF SHANGHAI FOR SCI & TECH
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