Method for preparing asymmetric polymer nanosphere
A technology of polymer and nanospheres, which is used in medical preparations and pharmaceutical formulations with non-active ingredients, can solve the problems of inconvenient post-processing, limited application, insoluble and infusible products, etc., and achieves controllable particle size and operation. Simple and easy process, simple post-processing effect
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Embodiment 1
[0024] Add 0.2mL of the hydrophilic monomer glycidyl methacrylate, 2mL of the hydrophobic monomer styrene, and 0.4mL of saturated hydrocarbon into a three-necked flask containing 30mL of deionized water, stir with nitrogen for 30-60min, and heat up to 75°C , Then add the aqueous solution that is dissolved with 0.04g potassium persulfate initiator. After reacting for 24 hours, a monodisperse styrene-divinylbenzene-glycidyl methacrylate (PS-PGMA) special-shaped polymer nanosphere emulsion was obtained. SEM images of shaped polymer nanospheres figure 1 shown.
Embodiment 2~5
[0025] Embodiment 2~5: with the process condition of embodiment 1, change the amount of saturated hydrocarbon respectively, synthesize the monodisperse styrene-glycidyl methacrylate (PS-PGMA) special-shaped polymer nanosphere emulsion of different shapes, The results are shown in Table 1.
[0026] Table 1
[0027]
Embodiment 4
[0028] The SEM figure of the polymer nanosphere obtained in embodiment 4 is shown in figure 2 , the SEM figure of the polymer nanosphere obtained in embodiment 5 is shown in image 3 .
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