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A kind of preparation method of formaldehyde-sensitive nano particle solution

A nano-particle and sensitive technology, which is applied in the field of preparation of formaldehyde-sensitive nano-particle solution, can solve the problems of short service life and cumbersome operation of formaldehyde sensors, and achieve the effect of overcoming the migration of probe molecules and good stability

Inactive Publication Date: 2015-12-02
徐文华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a formaldehyde-sensitive nanoparticle solution, which solves the problems of cumbersome operation and short service life of the existing formaldehyde sensor

Method used

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  • A kind of preparation method of formaldehyde-sensitive nano particle solution
  • A kind of preparation method of formaldehyde-sensitive nano particle solution
  • A kind of preparation method of formaldehyde-sensitive nano particle solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] (1) Synthetic probe molecule KD-XA01

[0019] Dissolve 3.24g of 1-phenyl-1,3-butanedione in 60ml of benzene, add 3.08g of ammonium acetate and 1ml of acetic acid, and reflux for 12 hours at 80°C in a nitrogen atmosphere to obtain the product. The reactants are washed, dried, and Remove the solvent;

[0020] (2) Synthetic polymer P (St-alt-Man)

[0021] Weigh 6.24g styrene, 7.06g maleic anhydride dissolved in 180mL toluene, add 0.06g AIBN, pass N 2 15min, sealed, and reacted in an oil bath at 65℃ for 20h. The product was filtered off with suction and rinsed with hot toluene, then dissolved in acetone, and separated by precipitation with toluene. After repeated dissolution and precipitation three times, dried in a vacuum oven at 30℃ to obtain P(St- alt-Man);

[0022] (3) Preparation of nanoparticle solution

[0023] Weigh 0.5g of P(St-alt-Man), KD-XA010.03g, and dissolve it in 10ml of DMF. Stir vigorously while slowly adding ultrapure water dropwise. When blue opalescence appears...

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Abstract

The invention discloses a preparation method of a formaldehyde sensitive type nanoparticle solution. Firstly, a polymer P (St-alt-Man) and a formaldehyde probe molecule KD-XA01 are synthesized, and a probe molecule supported P (St-alt-Man) nanoparticle solution is obtained through a macromolecule self-assembly technology. The nanoparticle solution is sensitive to formaldehyde and has a formaldehyde detecting function.

Description

Technical field [0001] The invention belongs to the field of polymer self-assembly and chemical sensors, and specifically relates to a preparation method of a formaldehyde-sensitive nanoparticle solution. Background technique [0002] Formaldehyde is a colorless gas that is irritating and suffocating at room temperature, and it is extremely harmful to humans. It is one of the environmental pollutants that have received increasing attention. Formaldehyde ranks second in the priority control list of toxic chemicals in my country. Therefore, it is especially important to establish an easy-to-operate and high-precision method for determining formaldehyde. The most commonly used method for detecting formaldehyde is colorimetric method, which can be divided into chromotropic acid method, acetylacetone method, AHMT colorimetric method, etc. The preferred method for detecting formaldehyde in textiles, food and air in national standards is colorimetric method. The acetylacetone method is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/07C08L35/06C08K5/19C08F222/08C08F212/08
Inventor 白绘宇葛云龙刘晓亚
Owner 徐文华
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