A kind of preparation method of surface ionic liquid functionalized polymer microsphere
An ionic liquid and polymer technology, applied in the field of preparation of polymer microspheres, achieves the effects of simple operation process, mild reaction conditions and high group content
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Embodiment 1
[0039] Accurately measure 31.5mL of absolute ethanol, 13.5mL of ultrapure water, and 5mL of styrene into a clean 100mL round-bottom reaction bottle, then add 0.0906g of initiator AIBN and 0.00453g of AMPS-TEA, and mix the above reactant solutions evenly , Nitrogen was blown for 30 minutes to remove dissolved oxygen in the system, and then the reaction system was placed in an oil bath at 75° C., and reacted for 6 hours under the stirring condition of 300 rpm. After the reaction, wash with methanol, centrifuge three times, and vacuum dry at room temperature to constant weight to obtain surface ionic liquid functionalized polymer microspheres. The yield calculated by the gravimetric method is 74%, the particle diameter of the microspheres is about 670nm, and the CV value is 5.63%.
[0040] Such as figure 1 Is the infrared absorption spectrum of AMPS-TEA functionalized PS microspheres, where you can see the peak at the position of the characteristic absorption peak of the sulfoni...
Embodiment 2
[0042] Accurately measure 31.5mL of absolute ethanol, 13.5mL of ultrapure water, and 5mL of styrene into a clean 100mL round-bottomed reaction bottle, then add 0.0906g of initiator AIBN and 0.0113g of AMPS-TEA, and mix the above reactant solutions evenly , Nitrogen was blown for 30 minutes to remove dissolved oxygen in the system, and then the reaction system was placed in an oil bath at 75° C., and reacted for 6 hours under the stirring condition of 300 rpm. After the reaction, wash with methanol, centrifuge three times, and vacuum dry at room temperature to constant weight to obtain surface ionic liquid functionalized polymer microspheres. The yield calculated by the gravimetric method is 78%, the particle size of the microspheres is about 1150nm, and the CV value is 6.20%.
Embodiment 3
[0044] Accurately measure 31.5mL of absolute ethanol, 13.5mL of ultrapure water, and 5mL of styrene into a clean 100mL round-bottomed reaction bottle, then add 0.0906g of initiator AIBN and 0.0227g of AMPS-TEA, and mix the above reactant solutions evenly , Nitrogen was blown for 30 minutes to remove dissolved oxygen in the system, and then the reaction system was placed in an oil bath at 75° C., and reacted for 6 hours under the stirring condition of 300 rpm. After the reaction, wash with methanol, centrifuge three times, and vacuum dry at room temperature to constant weight to obtain surface ionic liquid functionalized polymer microspheres. The yield calculated by the gravimetric method is 81%, the particle size of the microspheres is about 1540nm, and the CV value is 5.99%.
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