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Process for producing luminous rare earth-beta-diketone-polyvinyl pyridine macromolecule composite material

A technology of polyvinylpyridine and composite materials, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problem of cancer induction, and achieve the effects of high conversion rate, good reproducibility and good dispersion

Inactive Publication Date: 2011-06-22
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In today's society, in order to prevent microorganisms from polluting drinking water, chlorine disinfection is usually used, but chloroform and other halides will be produced when treated with chlorine. These chemicals have harmful effects such as inducing cancer, and tap water treated with chlorine gas still Pathogenic virus can be detected

Method used

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  • Process for producing luminous rare earth-beta-diketone-polyvinyl pyridine macromolecule composite material
  • Process for producing luminous rare earth-beta-diketone-polyvinyl pyridine macromolecule composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Dissolve 1.000g of acetylacetone in 15ml of anhydrous acetone and add it to a three-necked flask, then add 5ml of anhydrous acetone solution dissolved with 0.480g of sodium hydride dropwise. The entire solution is controlled at 65°C and heated under nitrogen protection After refluxing for 2 hours, a solution of 4.950 g of triethoxysilylisocyanate dissolved in 5 ml of anhydrous acetone was added dropwise. After the dropwise addition, the temperature of the whole solution was controlled at 60° C., refluxed for 12 h under the protection of nitrogen, then cooled, and the solvent was distilled off under reduced pressure. The resultant was washed three times with 20 ml of cyclohexane to obtain a pale yellow oily liquid. The obtained oily organic bridge molecule system was dissolved in absolute ethanol and set aside. Dissolve 3ml of vinylpyridine in 15ml of anhydrous acetone and add it into a three-necked flask. The temperature of the entire solution is controlled at 60°C, an...

Embodiment 2

[0035] Dissolve 2.243g of dibenzoylmethane in 15ml of anhydrous ether and add it to a three-necked flask, then add 5ml of anhydrous ether solution containing 0.480g of sodium hydride dropwise. After heating to reflux for 2 hours under protection, a solution of 4.950 g of triethoxysilylisocyanate in 5 ml of anhydrous diethyl ether was added dropwise. After the dropwise addition, the temperature of the whole solution was controlled at 65° C., refluxed for 13 h under the protection of nitrogen, then cooled, and the solvent was distilled off under reduced pressure. The resultant was washed three times with 20 ml of cyclohexane to obtain a pale yellow oily liquid. The obtained oily organic bridge molecule system was dissolved in absolute ethanol and set aside. Dissolve 3ml of vinylpyridine in 15ml of anhydrous ether and add it into a three-necked flask. The temperature of the entire solution is controlled at 65°C, and it is refluxed for 7 hours under the protection of nitrogen, th...

Embodiment 3

[0037] Dissolve 2.222g of thienoyltrifluoroacetone in 15ml of anhydrous pyridine and add it to a three-necked flask, then add 5ml of anhydrous pyridine solution with 0.480g of sodium hydride dissolved in it dropwise, and control the entire solution at 75°C. After heating to reflux for 2 hours under the protection of nitrogen, a solution of 4.950 g of triethoxysilylisocyanate in 5 ml of anhydrous pyridine was added dropwise. After the dropwise addition, the temperature of the whole solution was controlled at 70° C., refluxed for 14 h under the protection of nitrogen, then cooled, and the solvent was distilled off under reduced pressure. The resultant was washed three times with 20 ml of cyclohexane to obtain a pale yellow oily liquid. The obtained oily organic bridge molecule system was dissolved in absolute ethanol and set aside. Dissolve 3ml of vinylpyridine in 15ml of anhydrous pyridine and add it into a three-necked flask. The temperature of the entire solution is controll...

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Abstract

The invention belongs to the technical field of a luminescent high molecular material, in particular relates to a method for preparing luminescent rare earth-Beta-diketone-polyvinyl pyridine polymer macromolecule composite material. The organic synthesis method is adopted for modifying Beta-diketone organic small molecules so that the Beta-diketone organic small molecules become bridging molecules connecting an inorganic silica network and an organic polymer; subsequently, polyvinyl pyridine is synthesized through addition polymerization; the bridge molecule, the polymer and rare earth ions are assembled into a rare earth complex through coordination links; finally, adopting the sol-gel method, the rare earth complex is undergone the hydrolytie polycondensation of the bridging molecule toobtain xerogel; organic polymer macromolecules with long carbochains are inlaid in an inorganic silica network substrate; the polymer macromolecule composite material with stable chemical and thermodynamic property, regular surface topography and characteristic fluorescence emmission is got through drying and ageing. The preparation method can be carried out directly at room temperature, which isvery operable and reproducible. The product quality is stable; the grain size can be controlled within the scope of micrometer and nanometer. In addition, the surface topography is regular.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a preparation method of a luminescent rare earth-β-diketone-polyvinylpyridine (PVP) polymer composite material. Background technique [0002] The rapid development of today's society has already made it extremely urgent to discover the functional compounding, performance complementation and optimization of various materials, and the preparation of hybrid materials with excellent performance. Therefore, as soon as the organic-inorganic system appeared, it immediately attracted great attention of scientists. All countries in the world have invested a lot of manpower, material resources and financial resources to conduct in-depth and meticulous research on this material. Generally speaking, polymer composite materials have the following characteristics: inorganic substances and polymers can achieve molecular level or nano-scale composite, optical pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C08F126/06C08F8/42
Inventor 闫冰乔晓菲
Owner TONGJI UNIV
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