Polymerization type anion surface active agent and its prepn. method
A technology for surfactants and anions, applied in the field of polymeric anionic surfactants and its preparation, can solve the problems of non-industrial production of anionic polymeric surfactants, and achieve low critical micelle concentration, strong surface activity, and high efficiency Effect
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[0032] Example 1
[0033]
[0034] a. Amidation reaction:
[0035] Put lauric acid and monoethanolamide into the reactor, the molar ratio of the feed is: lauric acid: monoethanolamide = 1:5, and then add resin catalyst D005, the amount of catalyst added is 1‰ of the total reactant amount, reaction temperature 110~120℃, react for 2~3 hours under normal pressure;
[0036] b. Add epichlorohydrin
[0037] Add epichlorohydrin slowly to the intermediate obtained in step a, and the molar ratio of the feed is: intermediate obtained in step a: epichlorohydrin=1:5, and the reaction temperature is controlled at 50-60°C , React for 2 to 3 hours under normal pressure;
[0038] c. Sulfonation reaction
[0039] The intermediate obtained in step b is put into sodium bisulfite, and the molar ratio of the feed is: the intermediate obtained in step b: sodium bisulfite = 1:5, the reaction temperature is 40-50 ℃, and the reaction is under normal pressure. ~2 hours;
[0040] d. Polymerization
[0041...
Example Embodiment
[0042] Example 2
[0043]
[0044] a. Amidation reaction:
[0045] Put palmitic acid and monoethanolamide into the reactor, the molar ratio of the feed is: palmitic acid: monoethanolamide = 5:1, then add resin catalyst D005, the amount of catalyst added is 5‰ of the total amount of reactants, reaction temperature 160~170℃, react for 7~8 hours under normal pressure;
[0046] b. Add epichlorohydrin
[0047] Slowly add epichlorohydrin to the intermediate obtained in step a, the molar ratio of which is: the intermediate obtained in step a: epichlorohydrin = 5:1, and the reaction temperature is controlled at 90-100°C , React for 7-8 hours under normal pressure;
[0048] c. Sulfonation reaction
[0049] The intermediate obtained in step b is put into sodium bisulfite, and the molar ratio of the feed is: the intermediate obtained in step b: sodium bisulfite = 5:1, the reaction temperature is 80-90°C, and the reaction is carried out under normal pressure. ~5 hours;
[0050] d. Polymeriz...
Example Embodiment
[0053] Example 3
[0054]
[0055] a. Amidation reaction:
[0056] Put oleic acid and monoethanolamide into the reactor, the molar ratio of the feed is: oleic acid: monoethanolamide=4:3, and then add resin catalyst D005, the amount of catalyst added is 2‰ of the total reactant amount, and the reaction temperature 100~120℃, react for 4~5 hours under normal pressure;
[0057] b. Add epichlorohydrin
[0058] Slowly add epichlorohydrin to the intermediate obtained in step a, the molar ratio of which is: the intermediate obtained in step a: epichlorohydrin=4:3, and the reaction temperature is controlled at 70-80°C , React for 5-6 hours under normal pressure;
[0059] c. Sulfonation reaction
[0060] The intermediate obtained in step b is put into sodium bisulfite, and the molar ratio of the feed is: the intermediate obtained in step b: sodium bisulfite = 4:3, the reaction temperature is 70-80°C, and the reaction is carried out under normal pressure. ~5 hours;
[0061] d. Polymerizati...
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