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Supramolecular luminescent gel system constructed by sulfonated cyclodextrin-bromophenylmethylpyridinium salt-amino clay and preparation method thereof

A technology of bromophenylmethylpyridine salt and sulfonated cyclodextrin, which is applied in the field of supramolecular luminescent gel system, can solve the problems of weak phosphorescence, low intersystem crossing efficiency, low-efficiency spin coupling, etc. Low, easy to process, easy to prepare effect

Active Publication Date: 2022-04-29
NANKAI UNIV
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Problems solved by technology

However, due to the inefficient spin coupling of pure organic molecules, the intersystem crossing efficiency is very low, and the phosphorescence emitted is very weak.

Method used

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  • Supramolecular luminescent gel system constructed by sulfonated cyclodextrin-bromophenylmethylpyridinium salt-amino clay and preparation method thereof
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Embodiment

[0036] A supramolecular luminescence gel system constructed by sulfonated cyclodextrin (SCD)-bromophenylmethylpyridinium salt-amino clay, in which sulfonated cyclodextrin is the host and bromomethylphenylpyridinium salt is the object. The chemical structure of the building blocks is as follows:

[0037]

[0038] The preparation method of the supramolecular luminescent gel system constructed by the sulfonated cyclodextrin-bromophenylmethylpyridinium salt-amino clay provided by the present invention comprises the following steps:

[0039] Step 1, the preparation of amino clay aqueous solution;

[0040] Step 2, preparation of sulfonated cyclodextrin-bromophenylmethylpyridinium salt binary supramolecular nanoparticles solution;

[0041] Step 3, adding the binary supramolecular nanoparticle solution obtained in step 2 into the amino clay aqueous solution prepared in step 1, stirring, and then standing to form coagulation;

[0042] See attached figure 1 , in the above preparat...

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Abstract

A supramolecular luminescent gel system constructed by sulfonated cyclodextrin-bromophenylmethylpyridinium salt-aminoclay and its preparation method, wherein sulfonated cyclodextrin is used as the main body, bromomethylphenylpyridinium salt is used as the object, A novel supramolecular xerogel in which SCD is non-covalently bonded to aminoclay was successfully constructed using bromophenylpicoline based on electrostatic interaction and host-guest interaction. This xerogel network has a rigid structure that effectively immobilizes the phosphor, limits vibration dissipation, and enables the xerogel to emit RTP. In this system, SCD plays a crucial role in maintaining the emission behavior of the monomer, and AC provides a layered layer for PYCl through the strong suppression of phosphor vibration by the electrostatic gel network structure and the non-radiative relaxation process. environment, this supramolecular xerogel can generate a strong RTP signal. In addition, the xerogel has a certain responsiveness to humidity and has potential applications in organic light-emitting materials and humidity sensing.

Description

technical field [0001] The invention belongs to the technical field of supramolecular luminescent gel, in particular to a supramolecular luminescent gel system constructed by sulfonated cyclodextrin (SCD)-bromophenylmethylpyridinium salt-amino clay. Background technique [0002] Organic room-temperature phosphorescence (RTP) has attracted a lot of attention in recent years, mainly because of their wide applications in optoelectronics and photobiology, such as organic light-emitting diodes and bioimaging. So far, many organic room temperature phosphorescent materials are organometallic complexes. Considering their limited resources and high prices, it is particularly urgent to develop pure organic (metal-free) room temperature phosphorescent materials. In addition, gel materials with phosphorescent emission properties have attracted extensive attention of researchers. Due to their special optical and mechanical properties, they have great potential in the fields of materials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L5/16C08K5/3432C08K9/06C08K3/16C08J9/28C08J3/075C08B37/16B01J13/00C09K11/06C07D213/26
CPCC08J9/28C08J9/0095C08J9/009C08J9/0028C08J3/075B01J13/0091C09K11/06C07D213/26C08B37/0012C09K2211/145C08J2305/16C08K5/3432C08K9/06C08K2003/166C08J2205/028
Inventor 刘育范文涛陈湧王丽华
Owner NANKAI UNIV
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