Red fluorescence polymer and red fluorescence powder, preparation methods and applications thereof

A technology of red light fluorescent powder and red light fluorescence is applied in the direction of conjugated synthetic polymer rayon, single-component synthetic polymer rayon, chemical instruments and methods, etc., and can solve the problem of non-conjugated polymer fluorescent agent production. In order to solve the problems of low yield, single color of non-conjugated polymers, and high price of organic dyes, it achieves the effects of good water solubility, simple and easy preparation method, and low biological toxicity and environmental pollution.

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

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Problems solved by technology

[0004] Aiming at the biological toxicity and industrial application difficulties of organic fluorescent reagents in the prior art, as well as the low yield of non-conjugated polymer fluorescent agents, single color of non-conjugated polymers, limited application, and the high price of rare earth reagents or organic dyes for red light problem, the present invention provides a red fluorescent polymer, fluorescent powder and fluorescent fiber, UV-red conversion resin, and a series of technical solutions for its preparation method and application

Method used

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  • Red fluorescence polymer and red fluorescence powder, preparation methods and applications thereof
  • Red fluorescence polymer and red fluorescence powder, preparation methods and applications thereof
  • Red fluorescence polymer and red fluorescence powder, preparation methods and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0105] Weigh 19.2g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL) into 200mL of ethanol solution, stir to disperse; Weigh 4.8g of sodium hydroxide into 200mL of deionized water to dissolve; Dissolve MVL’s ethanol The dispersion was added dropwise to the aqueous solution of sodium hydroxide while stirring until fully mixed. After that, it was treated in a 40°C constant temperature oven for 48 hours to remove the ethanol in it to obtain an aqueous solution of a strong base modified polymer. The solid obtained after drying the aqueous solution at 65°C for 48 hours is heated in a constant temperature blast drying oven at 180°C until it becomes uniform red to obtain a red fluorescent polymer, which shows bright red fluorescence under ultraviolet light. Its three-dimensional fluorescence spectrum is as follows figure 1 As shown, its excitation range is between 300-640nm, that is, covering the full spectrum region from ultraviolet to yellow light, and its emissio...

Embodiment 2

[0107] Weigh 19.2g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL) into 500mL of ethanol solution, stir to disperse; Weigh 2.88g of lithium hydroxide into 500mL of deionized water to dissolve; Dissolve MVL in ethanol The dispersion was added dropwise to the aqueous solution of lithium hydroxide while stirring until fully mixed. After that, it was treated in a 40°C constant temperature oven for 48 hours to remove the ethanol in it to obtain an aqueous solution of a strong base modified polymer. The solid obtained after drying the aqueous solution at 65°C for 48 hours is heated in a constant temperature blast drying oven at 180°C until it becomes uniform red to obtain a red fluorescent polymer, which shows bright red fluorescence under ultraviolet light. Its three-dimensional fluorescence spectrum is as follows figure 2 As shown, its excitation range is between 300-640nm, that is, covering the full spectrum region from ultraviolet to yellow light, and its em...

Embodiment 3

[0109] Weigh 19.2g of maleic anhydride-vinyl acetate linear alternating copolymer (MVL) into 150mL of ethanol solution, stir and disperse; Weigh 6.72g of potassium hydroxide into 100mL of deionized water to dissolve; Dissolve MVL’s ethanol The dispersion was added dropwise to the aqueous potassium hydroxide solution while stirring until fully mixed. After that, it was treated in a 40°C constant temperature oven for 48 hours to remove the ethanol in it to obtain an aqueous solution of a strong base modified polymer. The solid obtained after drying the aqueous solution at 65°C for 48 hours is heated in a constant temperature blast drying oven at 180°C until it becomes uniform red to obtain a red fluorescent polymer, which shows bright red fluorescence under ultraviolet light. Its three-dimensional fluorescence spectrum is as follows image 3 As shown, its excitation range is between 300-640nm, that is, covering the full spectrum region from ultraviolet to yellow light, and its em...

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Abstract

The invention belongs to the field of polymers, and relates to a red fluorescence polymer, a preparation method and applications, red fluorescence powder a preparation method and applications, red fluorescence fiber a preparation method and applications, and a transferred-to-red light resin, a preparation method and applications. According to the present invention, the red fluorescence polymer isa polymer obtained by modifying a maleic anhydride copolymer having a specific general formula with a strong alkali and then carrying out heat treatment, the excitation range is between 300-640 nm, and the emission range is within the red light region of 600-750 nm; the red fluorescence polymer, the red fluorescence powder, the red fluorescence fiber and the transferred-to-red light resin have theextremely wide excitation range from ultraviolet to green light to yellow light region, have the emission range only in the red light region, and further have characteristics of low raw material cost, mature production process, no biological toxicity, no environmental pollution and diversified applications, wherein the fluorescence performances are not restricted by the solution concentration andthe solid form; the preparation method is simple and easy to perform, and is suitable for industrial production; and the product has broad application prospects in anti-counterfeiting field, bio-imaging field, light-transfer films, solar cell sealing glues, fluorescent dyes and other fields.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, and furthermore, to a series of red light fluorescent polymers and their fluorescent powders, fluorescent fibers, ultraviolet-green light-to-red light resins and preparation methods. Background technique [0002] Fluorescence, or photoluminescence, refers to the fact that fluorescent materials absorb high-energy light radiation (such as ultraviolet, X-ray, and short-wavelength sunlight) to cause internal electronic energy level transitions and re-release long-wave light with lower energy due to its absorption and emission The difference in wavelength, fluorescence has important application prospects in mineralogy, gemology, medicine, chemical sensing, fluorescent labeling, dyes, and biological detection. Fluorescent materials can be broadly divided into two categories: inorganic and organic fluorescent materials. Compared with inorganic fluorescent agents, organic fluorescent materials usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/44C08F222/06C08F218/08C08J3/12C08L35/00C08L29/04C08K3/26D01F6/50D01F1/10D01F8/10C08L23/06C08L23/08C08K5/134C08K5/526C09K11/06
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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