Ampholytic surfactant containing quaternary ammonium salt as well as preparation method and application of ampholytic surfactant
A technology of surfactant and quaternary ammonium salt, applied in the field of materials, can solve the problems of loss of surface activity, limited application scope, etc., and achieve the effect of good antistatic and good antibacterial properties
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0057] The structural formula (i) of the tensio-active agent prepared by the present embodiment is as follows:
[0058] Its preparation method comprises the following steps:
[0059] (1) Dissolve 20.2g of SMA (0.1mol) in 400ml of 1,4-dioxane, add 0.6g (0.005mol, 5%) of 4-dimethylaminopyridine (DMAP), heat to 40°C, and stir for 30min Finally, dry ammonia gas is slowly introduced, and white precipitate appears immediately, and ammonia gas is continuously introduced until the precipitation does not increase, and the reaction ends. After filtering, the white solid was washed with acetone and dried to obtain 1,20 g of the product with a yield of 85%.
[0060] (2) Take 23.6g of product 1 (0.1mol), dissolve it in water, add 15.16g (0.1mol) of 2,3-epoxypropyltrimethylammonium chloride, heat to 60°C and react for 5h, the reaction is completed, and the reaction After the liquid was cooled, the product was added dropwise to ethanol to precipitate the product under stirring, filtered,...
Embodiment 2
[0062] The structural formula (ii) of the tensio-active agent prepared by the present embodiment is as follows:
[0063] Its preparation method comprises the following steps:
[0064] (1) Dissolve 20.2g of SMA (0.1mol) in 400ml of 1,4-dioxane, add 0.6g (0.005mol, 5%) of 4-dimethylaminopyridine (DMAP), heat to 40°C, and stir for 30min Finally, dry ammonia gas is slowly introduced, and white precipitate appears immediately, and ammonia gas is continuously introduced until the precipitation does not increase, and the reaction ends. After filtering, the white solid was washed with acetone and dried to obtain 1,20 g of the product with a yield of 85%.
[0065] (2) Take 23.6g of product 1 (0.1mol), dissolve it in water, add 19.37g (0.1mol) of 2,3-epoxypropyltriethylammonium chloride, heat to 60°C and react for 5h, the reaction is completed, the reaction After the liquid was cooled, the product was added dropwise to ethanol to precipitate the product under stirring, filtered, was...
Embodiment 3
[0067] The structural formula (iii) of the tensio-active agent prepared by the present embodiment is as follows:
[0068] Its preparation method comprises the following steps:
[0069] (1) Dissolve 20.2g of SMA (0.1mol) in 400ml of 1,4-dioxane, add 0.6g (0.005mol, 5%) of 4-dimethylaminopyridine (DMAP), heat to 40°C, and stir for 30min Finally, dry ammonia gas is slowly introduced, and white precipitate appears immediately, and ammonia gas is continuously introduced until the precipitation does not increase, and the reaction ends. After filtering, the white solid was washed with acetone and dried to obtain 1,20 g of the product with a yield of 85%.
[0070] (2) Take 23.6g of product 1 (0.1mol), dissolve it in 1mol / L NaOH solution, add 24.7g (0.1mol) of (2-bromoethyl)trimethylammonium bromide, and heat to 80°C for 8h , after the reaction is finished, after the reaction solution is cooled, add dropwise into ethanol to precipitate the product under stirring, filter, wash every...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More