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Functional polyquaternary salt and preparation method thereof

A polyquaternium and functional technology, applied in the field of polyquaternium and polyquaternium containing side chains, can solve the problems of difficult separation of main and by-products, affecting the efficiency of the main reaction, and low purity of the main product, and achieves The appearance is light, the side reaction is less, and the reaction process is safe and efficient.

Active Publication Date: 2021-03-09
JIANGSU OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many side reactions between tertiary amine and epichlorohydrin, which affects the efficiency of the main reaction, the separation of main and by-products is difficult, and the purity of the main product is low.

Method used

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  • Functional polyquaternary salt and preparation method thereof
  • Functional polyquaternary salt and preparation method thereof
  • Functional polyquaternary salt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of embodiment 1 functional polyquaternium salt (1)

[0033] Weigh 12 grams of acrylamide and 120 grams of ethanol and dissolve them in the reactor, control the temperature of the liquid in the reactor at 15-25°C, add 20 grams of 3-(N,N-dimethylamino)propylamine, and stir for 6 hours. Then add 25 grams of methyl methacrylate, continue to stir and react for 6 hours, and complete the Micheal addition reaction; in the Micheal addition reaction product in the reactor, add 42 grams of 1,4-dibromobutane to raise the temperature in the reactor. The temperature of the material is 60-80°C, the temperature is controlled and stirred for 8 hours, and the polyquaternization reaction is completed; the temperature is lowered to precipitate solids, filtered, and the liquid substances (including ethanol, unreacted acrylamide and methyl alcohol) in the reaction kettle are separated. methyl acrylate, etc.). With 120 grams of water, dissolve and filter the described ...

Embodiment 2

[0034] The preparation method of embodiment 2 functional polyquaternium salts (2)

[0035] According to the preparation method and operation steps of Example 1, 3-(N,N-dimethylamino)propylamine was replaced with 3-(N,N-dibenzylamino)propylamine, and methyl methacrylate was replaced with methoxy Polyethylene glycol-400 methacrylate can be used to prepare functional polyquaternium salt (2).

Embodiment 3

[0036] The preparation method of embodiment 3 functional polyquaternium salts (3)

[0037] According to the preparation method and operation steps of Example 1, the functional polyquaternium ammonium salt (3) aqueous solution can be prepared by replacing methyl methacrylate with lauryloxypolyethylene glycol-400 methacrylate.

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Abstract

The invention discloses a functional polyquaternary salt and a preparation method thereof. According to the functional polyquaternary salt of the side chain hydroxymethyl propionamide, provided by theinvention, the preparation raw materials comprise 3-(N, N-dialkylamino)propylamine, acrylamide, acrylate, a dialkylation reagent and formaldehyde, the reaction efficiency of each step is high, side reactions are few, the raw materials are easy to obtain, the preparation method is simple, the technological process is safe and efficient, the functional polyquaternary salt laterally connected with hydroxymethyl propionamide has hydrophilicity and an antibacterial function of common quaternary ammonium cation salt, not only can carry out quaternary ammonium cation crosslinking or modification ona natural polymer material, but also can endow the modified material with an antistatic function, a surfactant function and a softener function.

Description

technical field [0001] The invention relates to a polyquaternary ammonium salt, in particular to a polyquaternium salt containing (N-methylol propionamide) in a side chain, which is used as a quaternary ammonium cationic crosslinking agent or modifier, and belongs to the field of functional polymer materials. [0002] technical background [0003] Formaldehyde, glyoxal, glutaraldehyde, 1,3-dimethylolurea, dimethyloldihydroxyethylene urea, ethylene glycol diglycidyl ethers, toluene diisocyanate, cyanuric chloride, p- Phthaloyl chloride, etc. are commonly used small molecule cross-linking agents at present, which can carry out two or more condensation reactions, addition reactions, etherification reactions or Esterification reaction. Process-optimized 2,2-dichloroethyl ether company products can also be used as cross-linking agent or double alkylation agent for synthetic materials such as polyvinyl alcohol, polyamide, or starch, cellulose, chitosan Cross-linking occurs betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00
CPCC08G73/00
Inventor 刘霖李章丁波张开志张田林
Owner JIANGSU OCEAN UNIV
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