Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of hybrid luminescent material based on michael addition reaction and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A luminescent material, addition reaction technology, applied in luminescent materials, chemical instruments and methods, organic chemistry, etc.
Active Publication Date: 2020-03-20
ZHOUKOU NORMAL UNIV
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the preparation of hybrid luminescent materials by Michael addition reaction has not been reported
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0024] A method for preparing a hybrid luminescent material based on a Michael addition reaction, comprising the steps of:
[0025] Step 1. Add 4-vinylpyridine-2,6-dicarboxylic acid, mercapto-containing silica, ethanol and water into a three-necked flask with a mass ratio of (0.1-1):20:40:100, and adjust The pH value of the solution is 6-10, then stirred at room temperature for 6-24h under the protection of argon, filtered, the filter cake was washed with distilled water and absolute ethanol in turn, and vacuum-dried at 40-80°C for 4-10h, wherein the silica was MCM- 41 or SBA-15;
[0026]
[0027] Wherein, the preparation method of MCM-41 or SBA-15 mesoporous silica containing mercapto group comprises the following steps: MCM-41 or SBA-15, mercaptopropyltriethoxysilane, triethylamine, toluene according to (0.5-2 ): 2:1:40 mass ratio into a three-necked flask, heated to reflux for 12-48 h under the protection of argon, then stopped heating and naturally lowered to room temp...
Embodiment 1
[0032] A method for preparing a hybrid luminescent material based on a Michael addition reaction, comprising the steps of:
[0033] Step 1. Add 4-vinylpyridine-2,6-dicarboxylic acid, mercapto-containing MCM-41, ethanol and water into a three-necked flask at a mass ratio of 0.1:20:40:100 to adjust the pH of the solution The value is 10, then stirred at room temperature for 6 hours under the protection of argon, filtered, the filter cake was washed with distilled water and absolute ethanol in turn, and dried in vacuum at 60°C for 8 hours;
[0034] Step 2. Add terbiumchloride hexahydrate, the product prepared in step 1, ethanol and water into the there-necked flask at a ratio of 0.1:5:20:100, adjust the pH value of the solution to 8, stir at room temperature for 2 hours, filter, and filter cake Wash with distilled water and absolute ethanol in turn, and dry under vacuum at 60°C for 8h.
[0035] The preparation method of the MCM-41 containing mercapto group comprises the steps: ...
Embodiment 2
[0039] A method for preparing a hybrid luminescent material based on a Michael addition reaction, comprising the steps of:
[0040] Step 1. Add 4-vinylpyridine-2,6-dicarboxylic acid, mercapto-containing MCM-41, ethanol and water into a three-necked flask at a mass ratio of 0.3:20:40:100 to adjust the pH of the solution The value is 8, then stirred at room temperature for 10 h under the protection of argon, filtered, the filter cake was washed with distilled water and absolute ethanol in turn, and dried in vacuum at 50 ° C for 9 h;
[0041] Step 2. Add europiumchloride hexahydrate, the product prepared in step 1, ethanol and water into the there-necked flask at a ratio of 0.3:5:20:100, adjust the pH value of the solution to 7, stir at room temperature for 4 hours, filter, and filter cake Wash with distilled water and absolute ethanol in turn, and dry in vacuum at 50°C for 9h.
[0042] The preparation method of the MCM-41 containing mercapto group comprises the steps:
[0043...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a Michael addition reaction-based hybridluminescent material and a preparation method thereof. The structural general formula of the hybridluminescent material is shown in the description, and Ln in the formula is Tb<3+>, Eu<3+> or Dy<3+>. The preparation method comprises the following steps: adding 4-vinylpyridine-2,6-dicarboxylic acid, mercapto group-containing silica, ethanol and water to a three-necked flask, adjusting the pH value of the obtained solution to 6-10, carrying out room temperature under the protection of argon for 6-24 h, filtering the stirred solution, sequentially washing the obtained filter cake with distilled water and anhydrousethanol, and carrying out vacuum drying at 40-80 DEG C for 4-10 h; and dispersing the above prepared product in a distilled water and ethanolmixed solution, adding a rare earth salt, adjusting the pH value of the obtained solution to 6-10, carrying out room temperature stirring for 2-12 h, filtering the stirred solution, sequentially washing the obtained filter cake with distilled water and anhydrous ethanol, and carrying out vacuum drying at 40-80 DEG C for 4-10 h. A luminescence center is molecularly compounded with an inorganic matrix through stable chemical bond connection between a rare earth complex and the inorganic matrix. The method is a universal method for preparing hybrid materials, and provides reference for the synthesis of other hybrid materials.
Description
technical field [0001] The invention belongs to the field of hybrid optical material preparation, and in particular relates to a Michael addition reaction-based hybrid luminescent material and a preparation method thereof. Background technique [0002] In recent years, organic / inorganic hybrid luminescent materials have shown good application prospects in ion detection, drugcontrolled release, catalysis, biomedicine and other fields. Among all luminescent groups, rare earth complexes have attracted increasing attention due to their advantages such as high luminous efficiency and color purity, long luminescent lifetime, and wide emission wavelength range. However, pure rare earth hybrid luminescent materials have poor thermal / light stability and are not easily machined. In order to solve these problems, researchers disperse rare earth complexes into inorganic or polymer matrices to prepare organic / inorganic hybrid materials with unique properties, which greatly expands the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More