Structure and preparation method of acrylate antifouling resin containing benzo[d]isothiazoline-3-one-triazinyl monomer
An antifouling resin and triazine-based technology, applied in biocide-containing paints, antifouling/underwater coatings, organic chemistry, etc., can solve the problem of short duration of drug effect, limited application range, poor water solubility, etc. Problems, to achieve the effect of not easy to spread and lose, low cost, and good development prospects
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[0015] Example 1
[0016] BIT-Triazine-based antifouling resin monomer 1 ( figure 1 -a) Synthesis: In a two-necked flask with a stirring device, add 10 mL of allyl alcohol, control the temperature below 5℃ under the ice-water bath, add 1.85 g of cyanuric chloride and 1.05 g of sodium bicarbonate, and react 0.5 After h, the temperature was naturally raised to room temperature, and the reaction was continued to be stirred for 2 h to stop the reaction. Mix the reaction liquid with ethyl acetate, extract and wash with water, repeat the operation three times, dry with anhydrous magnesium sulfate for 12 h, and filter the filtrate, which is 2-propenoxy-4,6-dichloro-1,3,5-tri Azine. Then continue to add 3.02 g of BIT, adjust the pH with triethylamine during the reaction, and stir at room temperature for 8 hours to stop the reaction. The filtrate was separated by suction filtration, extracted with ethyl acetate, washed with deionized water three times, and dried with anhydrous magnesium...
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[0017] Example 2
[0018] BIT-Triazine-based antifouling resin monomer 2 ( figure 1 -b) Synthesis: In a two-necked flask with a stirring device, add 10 mL of methallyl alcohol, control the temperature below 5°C in an ice-water bath, and add 1.85 g of cyanuric chloride and 1.05 g of sodium bicarbonate in sequence After reacting for 0.5 h, the temperature was naturally raised to room temperature, and the reaction was continued to stir for 3 h to stop the reaction. Mix the reaction liquid with ethyl acetate, extract and wash with water, repeat the operation three times, dry with anhydrous magnesium sulfate for 12 h, and filter the filtrate to be 2-(2-methylpropenoxy)-4,6-dichloro-1 ,3,5-Triazine. Then continue to add 3.02 g of BIT, adjust the pH with triethylamine during the reaction, and stir at room temperature for 8 hours to stop the reaction. The filtrate was separated by suction filtration, extracted with ethyl acetate, washed with deionized water three times, and dried with ...
Example Embodiment
[0019] Example 3
[0020] BIT-Triazine-based antifouling resin monomer 3 ( figure 1 -c) Synthesis: In a two-necked flask with a stirring device, add 10 mL of 3-butenol, control the temperature below 5°C in an ice-water bath, and add 1.85 g of cyanuric chloride and 1.05 g of sodium bicarbonate in sequence. After reacting for 0.5 h, the temperature was naturally raised to room temperature, and the reaction was continued to be stirred for 5 h to stop the reaction. Mix the reaction liquid with ethyl acetate, extract and wash with water, repeat the operation three times, and dry with anhydrous magnesium sulfate for 12 h. The filtered filtrate is 2-(3-butenyloxy)-4,6-dichloro-1, 3,5-Triazine. Then add 3.32 g BIT, adjust the pH with triethylamine during the reaction, and stir at room temperature for 6 h to stop the reaction. The filtrate was separated by suction filtration, extracted with ethyl acetate, washed with deionized water three times, and dried with anhydrous magnesium sulfat...
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