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Synthesis and application of cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agent having amino acid structure

A technology of octadecyldimethyl tertiary amine and fluorescent whitening agent, which can be used in bleaching products, styryl dyes, textiles and paper making, etc., can solve the problems of easy precipitation, poor affinity, and reduced fluorescence performance, etc. Achieve the effect of improving strong acid resistance and improving practicability

Inactive Publication Date: 2013-01-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional triazine-DSD acid fluorescent whitening agent, due to the good water solubility of the anionic sulfonic acid group, has poor affinity with polyamide fiber and acetate fiber of hydrophobic fabrics, the dyeing rate is not high, and the whitening effect is average
At the same time, the traditional fluorescent whitening agent has poor acid resistance, is easy to precipitate under acidic conditions, and the fluorescence performance is seriously reduced.

Method used

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  • Synthesis and application of cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agent having amino acid structure
  • Synthesis and application of cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agent having amino acid structure
  • Synthesis and application of cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agent having amino acid structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In a 1000mL three-necked flask, add 500mL of deionized water and 36.90g of cyanuric chloride, keep the temperature at 0-5°C in an ice bath; stir and add 53.90g of N,N-dimethylhexadecane (or octadecane) Base tertiary amine, add 10% NaOH solution to make the pH of the reaction system 3-4, react for 2.5h; then add 37.04g DSD acid, raise the temperature to 40-50°C, and adjust the pH value to 6-7 with 10% NaOH, react for 4h Finally, add 26.62g of iminodiacetic acid, adjust the pH value to 8-9 with 10% NaOH solution, react for 6h, cool to room temperature, add sodium chloride to saturate, precipitate solid, filter with suction, and dry to obtain a yellow product.

[0018] Taking example 1 as an example, the product structure is: R 1 It is the functional group formed after the amino group in iminodiacetic acid loses a hydrogen atom, R 2 for -(CH 2 ) 15 CH 3 , the NMR spectrum of the product is shown in figure 1 as shown, 1 H-NMR (DMSO-d 6 ):10.71(s,NH,2H),9.21(s,NH,2H),...

Embodiment 2

[0020] In a 1000mL three-neck flask, add 500mL of deionized water and 36.90g of cyanuric chloride, keep the temperature at 0-5°C in an ice bath; stir and add 53.90g of N,N-dimethylhexadecyl (or octadecyl) For tertiary amines, add 10% NaOH solution to make the pH of the reaction system 3-4, and react for 2.5 hours; then add 37.04g of DSD acid, raise the temperature to 40-50°C, and adjust the pH value to 6-7 with 10% NaOH solution, and react for 4 hours Finally, add 29.43g of glutamic acid, adjust the pH value to 8-9 with 10% NaOH solution, react for 6h, cool to room temperature, add sodium chloride to saturate, precipitate solid, filter with suction, and dry to obtain a yellow product.

Embodiment 3

[0022] In a 1000mL three-necked flask, add 500mL of deionized water and 36.90g of cyanuric chloride, keep the temperature at 0-5°C in an ice bath; stir and add 53.90g of N,N-dimethylhexadecane (or octadecane) Base tertiary amine, add 10% NaOH solution to make the pH of the reaction system 3-4, react for 2.5h; then add 37.04g DSD acid, raise the temperature to 40~50°C, and adjust the pH value to 6-7 with 10% NaOH solution, react 4h; finally add 15.01g glycine, adjust the pH value to 8-9 with 10% NaOH solution, react for 6h, cool to room temperature, add sodium chloride to saturate, precipitate solid, filter with suction, and dry to obtain a yellow product.

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Abstract

The invention relates to synthesis and an application of a series of cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agents having an amino acid structure, wherein the whitening agents are mainly used in papermaking, coating, printing ink and weaving. The synthesis comprises the following steps: a, reacting cyanuric chloride with N,N-dimethyl cetyl (or octadecyl) tertiary amine for 2.5h at 0-5 DEG C, controlling the pH value to 3-4, and synthesizing to obtain an one-step condensation product; b, reacting the one-step condensation product with DSD acid at 45 DEG C for 4h, controlling the pH value to 6-7, and synthesizing to obtain a two-step condensation product; and c, reacting the two-step condensation product with amino compounds at 90-95 DEG C for 6h, controlling the pH value to 8-9, and synthesizing to obtain the cetyl or octadecyl dimethyl tertiary amine quaternary ammonium salt high performance fluorescent whitening agents having the amino acid structure.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, and provides the synthesis and application of a series of high-performance fluorescent whitening agents of hexadecyl and octadecyl dimethyl tertiary ammonium salts with amino acid structure. Background technique [0002] Triazine-DSD acid fluorescent whitening agent, that is, triazine aminostilbene fluorescent whitening agent, is widely used in papermaking, textile, coating, detergent and other industries because of its high cost performance, and has become a research topic at home and abroad. And one of the most produced fluorescent whitening agents. The traditional triazine-DSD acid fluorescent whitening agent, due to the good water solubility of the anionic sulfonic acid group, has poor affinity with polyamide fiber and acetate fiber of hydrophobic fabrics, the dyeing rate is not high, and the whitening effect is average. At the same time, the traditional fluorescent whitening agent ha...

Claims

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Application Information

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IPC IPC(8): C09B23/14D06L3/12D06M13/477D06L4/629D06L4/664D06L4/679
Inventor 曹成波羊涛张春莲郭敬兰
Owner SHANDONG UNIV
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