Blue fluorescent polymer, blue fluorescent powder as well as preparation methods and applications of blue fluorescent polymer and blue fluorescent powder

A fluorescent polymer and polymer technology are applied in the fields of UV-to-blue light resin and its preparation, fluorescent fiber, fluorescent powder, and blue fluorescent polymer, which can solve the difficulty of biotoxic industrial application and the yield of non-conjugated polymer fluorescent agent. It has low biological toxicity and environmental pollution, good water solubility and broad application prospects.

Inactive Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the biological toxicity and industrial application difficulties of organic fluorescent reagents in the prior art, as well as the low yield and weak fluorescence of non-conjugated polymer fluorescent agents, the present inv

Method used

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  • Blue fluorescent polymer, blue fluorescent powder as well as preparation methods and applications of blue fluorescent polymer and blue fluorescent powder
  • Blue fluorescent polymer, blue fluorescent powder as well as preparation methods and applications of blue fluorescent polymer and blue fluorescent powder
  • Blue fluorescent polymer, blue fluorescent powder as well as preparation methods and applications of blue fluorescent polymer and blue fluorescent powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Weigh 25.6g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL) into 600mL of ethanol solution, stir and disperse; weigh 6.4g of sodium hydroxide into 600mL of deionized water for dissolution; The dispersion liquid was added dropwise to the aqueous solution of sodium hydroxide, while stirring until fully mixed, and then the mixed liquid was dried in an oven at 40° C. for 24 hours to remove ethanol to prepare an aqueous solution of the blue fluorescent polymer. This blue light fluorescent polymer aqueous solution shows very bright blue fluorescence under the irradiation of ultraviolet light, indicating that the blue light fluorescent polymer has high fluorescence intensity, and its three-dimensional fluorescence spectrum is as follows figure 1 As shown, the excitation range is 300-425nm, the emission range is 400-550nm, and the emission peak is mainly located in the blue light region between 430-520nm. The blue fluorescent polymer aqueous solution is dri...

Embodiment 2

[0111] Weigh 12.8g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL, same as Example 1) into 200mL of ethanol solution, stir and disperse; weigh 1.9g of lithium hydroxide into 100mL of deionized water for dissolving Add the ethanol dispersion of MVL dropwise to the aqueous solution of lithium hydroxide, while stirring until fully mixed, then treat the mixed solution in a constant temperature oven at 40°C for 24 hours, remove the ethanol, and prepare an aqueous solution of blue light fluorescent polymer . This blue fluorescent polymer aqueous solution shows very bright blue fluorescence under the irradiation of ultraviolet light, indicating that the blue fluorescent polymer has high fluorescence intensity, and its three-dimensional fluorescence spectrum is as follows: figure 2 As shown, the excitation range is 300-425nm, the emission range is 400-550nm, and the emission peak is mainly located in the blue light region between 430-520nm. The blue fluorescent ...

Embodiment 3

[0113] Weigh 12.8g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL, the same as Example 1) and drop into 100mL of ethanol solution, stir and disperse; weigh 4.5g of potassium hydroxide into 300mL of deionized water for dissolving ; Add the ethanol dispersion of MVL dropwise to the aqueous solution of potassium hydroxide, while stirring until fully mixed, and then treat the mixed solution in a constant temperature oven at 40°C for 24 hours to remove the ethanol and prepare an aqueous solution of blue light fluorescent polymer . This blue fluorescent polymer aqueous solution shows very bright blue fluorescence under the irradiation of ultraviolet light, indicating that the blue fluorescent polymer has high fluorescence intensity, and its three-dimensional fluorescence spectrum is as follows: image 3As shown, the excitation range is 300-425nm, the emission range is 400-550nm, and the emission peak is mainly located in the blue light region between 430-520nm. ...

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Abstract

The invention relates to the field of polymers, and in particular relates to a blue fluorescent polymer, blue fluorescent powder, blue fluorescent fibers, ultraviolet conversion into blue light resinas well as preparation methods and applications of the blue fluorescent polymer, the blue fluorescent powder, the blue fluorescent fibers and the ultraviolet conversion into blue light resin. The bluefluorescent polymer is prepared by performing modification on a maleic anhydride copolymer with a special general formula by a strong alkali; and the aqueous solution or the aqueous dispersion liquidof the blue fluorescent polymer has an excitation range from 300 to 425 nm, an emission range from 400 to 550 nm, and an emission peak of 430-520 nm of a blue light region. The blue fluorescent polymer, blue fluorescent powder, blue fluorescent fibers and ultraviolet conversion into blue resin provided by the invention have the advantages of high fluorescence intensity, low raw material costs, amature production process, no biological toxicity or environmental pollution, good water solubility or water dispersion, fluorescence performance which is not restricted by a solution concentration and a solid form, various application forms, a simple preparation method easy to implement and extremely-easy industrial promotion; and the blue fluorescent polymer, the blue fluorescent powder, the blue fluorescent fibers and the ultraviolet conversion into blue resin have broad application prospects in the fields of anti-counterfeiting technologies, biological imaging, light-transfer films, solarcell sealants and fluorescent dyes.

Description

technical field [0001] The present invention relates to the technical field of polymer materials, and furthermore, relates to a series of high-fluorescence-intensity blue-light fluorescent polymers, fluorescent powders, fluorescent fibers, ultraviolet-to-blue-light resins and their preparation methods and applications. Background technique [0002] Fluorescence is photoluminescence, which means that after a fluorescent substance absorbs external high-energy light radiation (such as ultraviolet, X-ray, and short-wavelength sunlight), it causes an internal electronic energy level transition and re-releases low-energy long-wave light. Due to the difference in wavelength, fluorescence has important application prospects in mineralogy, gemology, medicine, chemical sensing, fluorescent labeling, dyes, and biological detection. Fluorescent substances can be broadly divided into inorganic and organic fluorescent substances. Compared with inorganic fluorescent agents, organic fluores...

Claims

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Application Information

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IPC IPC(8): C08F222/06C08F218/08C08F8/00C09K11/06D01F9/04D01F6/50D01F1/10C08L23/08C08L23/06
Inventor 郭照琰乔金樑张晓红茹越赖金梅蔡传伦宋志海戚桂村李秉海王湘高建明张红彬蒋海斌韩朋
Owner CHINA PETROLEUM & CHEM CORP
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