A kind of fluorine-containing hydrocarbon-based sulfonic acid type surfactant and its synthesis method
A technology of surfactant and hydrocarbon sulfonic acid, which is applied in the preparation of sulfonic acid, chemical instruments and methods, organic chemistry, etc., can solve instability and other problems, and achieve the effect of excellent salt resistance and excellent salt resistance
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[0047] The present invention also provides a method for synthesizing fluorine-containing hydrocarbon-based sulfonic acid surfactant, which includes the following steps:
[0048] Substituting the di-substituted amine solution and the fluorine-containing iodoalkane to obtain a fluorine-containing alkyl amine intermediate;
[0049] Quaternizing the fluorine-containing hydrocarbyl amine intermediate and sulfonic acid organic matter in a mixed solvent to obtain a fluorine-containing hydrocarbyl sulfonic acid surfactant;
[0050] The mixed solvent includes an organic solvent and water;
[0051] The organic solvent is ethylene glycol methyl ether, ethylene glycol ethyl ether or propylene glycol;
[0052] The volume ratio of organic solvent and water in the mixed solvent is (1-9):1.
[0053] In the present invention, a solution of a disubstituted amine and a fluorine-containing iodoalkane are mixed for substitution reaction to obtain a fluorine-containing hydrocarbon-based amine intermediate. I...
Embodiment 1
[0069] This embodiment provides a fluorine-containing hydrocarbon-based sulfonic acid type surfactant, which has the following structure:
[0070]
[0071] The above-mentioned fluorine-containing hydrocarbon-based sulfonic acid type surfactant provided in this embodiment is synthesized according to the following steps:
[0072] (1) Synthetic intermediate product: N-(2-perfluorohexyl) ethyldiethanolamine:
[0073] Add 0.01mol (1.05g) of diethanolamine and 20mL of anhydrous tetrahydrofuran to a 50mL three-necked round bottom flask equipped with a stirrer and a dropping funnel, and add benzyltriethylammonium chloride with 10% of the total raw materials as a catalyst , The reaction system was cooled with an ice water bath. Under stirring, 0.012 mol (5.69 g) of perfluorohexyl ethyl iodide was slowly dropped into the reaction system through a dropping funnel. After dripping, warm to room temperature. The reaction was stirred for another 6h. GC tracks the end of the reaction. After the...
Embodiment 2
[0091] This embodiment provides a fluorine-containing hydrocarbon-based sulfonic acid type surfactant, which has the following structure:
[0092]
[0093] The above-mentioned fluorine-containing hydrocarbon-based sulfonic acid type surfactant provided in this embodiment is synthesized according to the following steps:
[0094] (1) Synthetic intermediate product: N-(2-perfluorobutyl) ethyldipropylamine
[0095] Add 0.01mol (1.01g) of dipropylamine and 20mL of anhydrous ether into a 50mL three-necked round bottom flask equipped with a stirrer and a dropping funnel, and add 10% benzyltrimethylammonium chloride to the total amount of raw materials As a catalyst, the reaction system was cooled with an ice water bath. Under stirring, 0.011 mol (4.12 g) of perfluorobutyl ethyl iodide was slowly dropped into the reaction system through a dropping funnel. After dripping, warm to room temperature. The reaction was stirred for another 6h. GC tracks the end of the reaction. After the react...
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