A self-driven phenylboronic acid hydrogel driver and its preparation method
A technology of hydrogel driver and phenylboronic acid, which is applied in the field of self-driven phenylboronic acid hydrogel driver and its preparation, can solve the problems of difficult removal, complicated process, pollution and toxicity, etc., and achieve the goal of avoiding pollution and toxic organic solvents Use, increase the content of phenylboronic acid, the effect of high strength
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Embodiment 1
[0015] Disperse 0.077 g of artificial hectorite in 7.765 mL of water at room temperature, then add 1.37 mL of acrylic acid and 2 μL N , N' -Aqueous solution of methylenebisacrylamide (20 mg / mL), mix uniformly to obtain solution 1, dissolve 0.573 g 3-acrylamidophenylboronic acid in 0.525 mL 2-hydroxyethyl methacrylic acid and mix uniformly to obtain solution 2, Add solution 2 to solution 1, stir rapidly to obtain uniform solution 3, pass argon gas into solution 3 to remove oxygen, then add 0.34 mL potassium persulfate aqueous solution (20 mg / mL), stir evenly to obtain reaction solution, the reaction solution was added to the mold and sealed, and placed at 60 ° C for 3 hours to obtain a phenylboronic acid hydrogel with a tensile breaking strength of about 100 kPa; the prepared phenylboronic acid hydrogel was twisted into a spiral shape and fixed In 0.1 mol / L sodium hydroxide solution for 1 minute, the hydrogel was set, and the phenylboronic acid hydrogel actuator was obtained; ...
Embodiment 2
[0017] Disperse 0.115 g of artificial hectorite in 7.765 mL of water at room temperature, then add 1.37 mL of acrylic acid and 2 μL N , N '-Methylenebisacrylamide aqueous solution (20 mg / mL), mix well to get solution 1, dissolve 0.573 g 3-acrylamidophenylboronic acid in 0.525 mL 2-hydroxyethyl methacrylic acid and mix evenly to get solution 2 , add solution 2 to solution 1, stir quickly to obtain uniform solution 3, pass nitrogen gas into solution 3 to remove oxygen, then add 0.34 mL potassium persulfate aqueous solution (20 mg / mL), stir well, and finally Add the reaction solution into the mold and seal it, and place it at 60 °C for 10 hours to obtain a phenylboronic acid hydrogel with a tensile breaking strength of about 110 kPa; twist the prepared phenylboronic acid hydrogel into a "Z" shape After being fixed in 0.2 mol / L sodium hydroxide solution for 5 minutes, the hydrogel was set to form a phenylboronic acid hydrogel actuator; the actuator was soaked in 0.5 mol / L hydroch...
Embodiment 3
[0019] Disperse 0.154 g of artificial hectorite in 7.765 mL of water at room temperature, then add 1.37 mL of acrylic acid and 2 μL N , N'-Methylenebisacrylamide aqueous solution (20 mg / mL), mix well to get solution 1, dissolve 0.573 g 3-acrylamidophenylboronic acid in 0.525 mL 2-hydroxyethyl methacrylic acid and mix evenly to get solution 2 , add solution 2 to solution 1, stir quickly to obtain uniform solution 3, pass nitrogen gas into solution 3 to remove oxygen, then add 0.34 mL potassium persulfate aqueous solution (20 mg / mL), stir well, and finally Add the reaction solution into the mold and seal it, and place it at 50 °C for 24 hours to obtain a phenylboronic acid hydrogel with a tensile breaking strength of about 120 kPa; twist the prepared phenylboronic acid hydrogel into an "M" shape After being fixed in 1 mol / L sodium hydroxide solution for 10 minutes, the hydrogel was set to form a phenylboronic acid hydrogel actuator; the actuator was soaked in 0.1 mol / L hydrochl...
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