A kind of antibacterial hydrogel material and preparation method thereof
A technology of hydrogel and glycidyl ester, applied in botany equipment and methods, fungicides, chemicals for biological control, etc., can solve the problems of short antibacterial validity period, easy leakage of antibacterial agents, unstable antibacterial effect, etc.
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[0025] The invention provides a kind of preparation method of antibacterial hydrogel material, comprises the following steps:
[0026] A) under the action of catalyst, polyvinyl alcohol solution is reacted with glycidyl methacrylate to obtain functionalized polyvinyl alcohol;
[0027] B) Copolymerize and cross-link the functionalized polyvinyl alcohol aqueous solution and methacryloyloxyethyltrimethylammonium chloride under the condition of an initiator to obtain an antibacterial hydrogel material.
[0028] In the invention, under the action of a catalyst, the polyvinyl alcohol solution is reacted with glycidyl methacrylate to obtain functionalized polyvinyl alcohol. Specifically, it may be: add a catalyst to the polyvinyl alcohol solution, stir and mix, and then add glycidyl methacrylate for reaction to obtain functionalized polyvinyl alcohol.
[0029] In an embodiment of the present invention, the catalyst includes triethanolamine.
[0030] In some embodiments of the prese...
Embodiment 1
[0055] Add 10 mL of dimethyl sulfoxide and 1 g of polyvinyl alcohol into a 100 mL two-necked flask, heat at 100°C for 3 hours, then add 50 μL of triethanolamine and cool down to 90°C, continue stirring for 1 hour, then add 100 μL of glycidyl methacrylate, and react for 2 hours After cooling down to room temperature, the product is precipitated in acetone, and the product is functionalized polyvinyl alcohol.
[0056] Add 10 mL of deionized water into a 100 mL two-necked flask, add 0.5 g of functionalized polyvinyl alcohol, and heat at 100°C for 3 hours to obtain an aqueous solution of functionalized polyvinyl alcohol;
[0057] The aqueous solution of the functionalized polyvinyl alcohol was transferred to a dialysis bag with a molecular weight cut-off of 3000, dialyzed in deionized water for 24h, and then added 0.25g methacryloyloxyethyl trimethyl ammonium chloride ( DMC), 10 mL of dialyzed functionalized polyvinyl alcohol aqueous solution, fully dissolved in an ice bath under ...
Embodiment 2
[0062] Add 10 mL of dimethyl sulfoxide and 1 g of polyvinyl alcohol into a 100 mL two-necked flask, heat at 100°C for 3 hours, then add 50 μL of triethanolamine and cool down to 90°C, continue stirring for 1 hour, then add 100 μL of glycidyl methacrylate, and react for 2 hours After cooling down to room temperature, the product is precipitated in acetone, and the product is functionalized polyvinyl alcohol.
[0063] Add 10 mL of deionized water into a 100 mL two-necked flask, add 0.5 g of functionalized polyvinyl alcohol, and heat at 100°C for 3 hours to obtain an aqueous solution of functionalized polyvinyl alcohol;
[0064] The aqueous solution of the functionalized polyvinyl alcohol was transferred to a dialysis bag with a molecular weight cut-off of 3000, dialyzed in deionized water for 24h, and then added 0.5g methacryloyloxyethyl trimethyl ammonium chloride ( DMC), 10 mL of dialyzed functionalized polyvinyl alcohol aqueous solution, fully dissolved in an ice bath under a...
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Abstract
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