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Acrylamide polymerizable emulsifier with cations and non-ions and preparation method thereof

A polymeric emulsifier, acrylamide-type technology, applied in the field of acrylamide-type polymerizable emulsifier and its preparation, can solve the problems of many side reactions, poor stability of emulsion calcium ions, poor stability, etc., to achieve simple experimental operation, The effect of excellent emulsifying properties and polymerization stability

Inactive Publication Date: 2011-08-31
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Cationic emulsifiers not only have special effects in anti-corrosion, textile and sterilization, but also can solve the problem of poor calcium ion stability in emulsions prepared by anionic emulsifiers. However, when cationic emulsifiers are used alone for emulsion polymerization, there are many side reactions and the stability not good

Method used

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  • Acrylamide polymerizable emulsifier with cations and non-ions and preparation method thereof
  • Acrylamide polymerizable emulsifier with cations and non-ions and preparation method thereof
  • Acrylamide polymerizable emulsifier with cations and non-ions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of lauryl alcohol polyoxyethylene (3) acrylamide type quaternary ammonium salt polymerizable emulsifier:

[0030] (a) Preparation of Acryloyl Chloride

[0031] Synthesis steps: Weigh 0.12mol of acrylic acid, stir and heat; when the temperature rises to 40°C, add 0.04mol of phosphorus trichloride dropwise; after the dropwise addition, keep the system at 50°C for 2.5 hours, stop heating; stand at room temperature for 1 Filter through an ordinary funnel for 1 hour to obtain a colorless transparent liquid.

[0032] (b) Dimethylaminoacetamide Acrylate

[0033] Synthesis steps: Weigh 1.30mol of dimethylethylenediamine, place it in a 250mL three-neck flask, stir the reaction system and cool it to 0°C; add 0.12mol of anhydrous sodium carbonate, then slowly drop 0.12mol of acryloyl chloride, 1.5 The drop is completed in about 1 hour; the system is kept at 0°C for 5 hours to obtain acrylic acid dimethylaminoacetamide.

[0034] (c) Preparation of polyoxyethylene lau...

Embodiment 2

[0040] Preparation of tetradecyl alcohol polyoxyethylene (7) acrylamide type quaternary ammonium salt polymerizable emulsifier:

[0041] (a) Preparation of Acryloyl Chloride

[0042] Synthesis steps: Weigh 0.19 mol of acrylic acid, stir and heat; when the temperature rises to 40°C, add 0.07mol of phosphorus trichloride dropwise; after the dropwise addition, keep the system at 40°C for 3 hours, stop heating; stand at room temperature for 1 Hours, filtered to obtain a colorless transparent liquid.

[0043] (b) Dimethylaminoacetamide Acrylate

[0044]Synthesis steps: Weigh 0.80mol dimethylethylenediamine, put it in a 250mL three-neck flask, stir the reaction system and cool it to 3°C under an ice-water bath; add 0.16mol anhydrous sodium carbonate, and then slowly drop 0.14mol Acryloyl chloride, drop it off in about 1.5 hours; keep the system at 3°C ​​for 4.5 hours; obtain dimethylaminoacetamide.

[0045] (c) Preparation of Tetradecyl Polyoxyethylene (7) Glycidyl Ether

[0046...

Embodiment 3

[0051] Preparation of lauryl alcohol polyoxyethylene (25) acrylamide type quaternary ammonium salt polymerizable emulsifier:

[0052] (a) Preparation of Acryloyl Chloride

[0053] Synthesis steps: Weigh 0.17mol of acrylic acid, stir and heat; when the temperature rises to 40°C, add 0.06mol of phosphorus trichloride dropwise; after the dropwise addition, keep the system at 60°C for 2 hours, stop heating; stand at room temperature for 1 Hours, filtered to obtain a colorless transparent liquid.

[0054] (b) Dimethylaminoacetamide Acrylate

[0055] Synthesis steps: Weigh 1.24mol dimethylethylenediamine, put it in a 250mL three-necked flask, stir the reaction system and cool it to 5°C under an ice-water bath; add 0.16mol anhydrous sodium carbonate, and then slowly drop 0.15mol Acryloyl chloride, drop in about 1.5 hours; keep the system at 5°C for 4 hours to obtain dimethylaminoacetamide.

[0056] (c) Preparation of polyoxyethylene lauryl alcohol (25) glycidyl ether

[0057] Syn...

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Abstract

The present invention relates to an acrylamide polymerizable emulsifier with cations and non-ions and a preparation method thereof, belonging to the field of polymerizable emulsifier of the surfactant and a preparation thereof. The polymerizable emulsifier has not only cationic groups but also non-ion groups in structure so that the synergy of the two kinds of groups can be realized without combination. The specific solution is to adopt acrylic acid as starting material to perform chlorination reaction, acylation reaction, epichlorohydrin addition reaction and quaternization reaction to prepare the acrylamide cationic polymerizable emulsifier. The method has simple operation so that products with good application effectiveness can be obtained without purification. The product with the structure can control the HLB value of the synthesized surfactant by adjusting the epoxide addition number of polyoxyethylene ether, has good emulsifying performance and stability of polymerization and when using in emulsion polymerization, can be used to prepare a polymer emulsion with good performance. When the polymer emulsion is applied in coating, the coating can have antibacterial property without other added antimicrobial additives.

Description

technical field [0001] The invention relates to a cationic and nonionic acrylamide-type polymerizable emulsifier and a preparation method thereof, belonging to the field of polymerizable emulsifiers in surfactants and their preparation. Background technique [0002] With the continuous development of polymer science, polymer materials have been widely used in the fields of industry, agriculture, transportation and electronic appliances. However, during the processing of polymer materials, additives suitable for the survival and reproduction of microorganisms are often added, which makes the products easily stained during use and storage and breeds a large number of harmful microorganisms such as bacteria and fungi, thus becoming one of the important sources of disease transmission. One, endangering human health. [0003] In recent years, polymer antibacterial materials have been widely concerned. This material itself has the function of inhibiting and killing harmful micro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/22C09K23/22
Inventor 乔卫红曹翠李静
Owner DALIAN UNIV OF TECH
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