A kind of method for preparing super macroporous microsphere
A technology of super-large pores and microspheres, applied in the field of polymer materials, can solve the problems of unfavorable rapid separation and analysis, low mechanical strength of microspheres, and few types of monomers and cross-linking agents, and achieves the effect of simple and reliable preparation method.
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Embodiment 1
[0027] Add 1.35 ml of glycidyl methacrylate monomer and 0.81 ml of trimethylolpropane trimethacrylate crosslinking agent to 3.24 ml of dodecanol, mix well, add 23.1 mg of benzoyl peroxide, and blow in nitrogen 5 min, after removing oxygen, add 12 µl N,N-dimethylaniline, mix well; transfer to 30 ml water in the presence of stabilizer, disperse evenly; then place at 4 °C for 48 hours; stop reaction, washed with a certain amount of ethanol and water, centrifuged, and dried to obtain super-macroporous microspheres ( figure 1 , figure 2 ;in figure 1 The magnification factor is 1,000, figure 2 Magnification is 10,000).
Embodiment 2
[0029] Add 0.83 ml glycidyl methacrylate monomer and 0.79 ml ethylene glycol dimethacrylate cross-linking agent to 3.78 ml dodecyl alcohol, mix well, add 17.2 mg benzoyl peroxide, and blow nitrogen for 5 min , after removing oxygen, add 8.9 μl N,N-dimethylaniline, mix well; transfer to 30 ml water in the presence of stabilizer, disperse evenly; then place it at 4 ℃ for 48 hours; stop the reaction, After washing with a certain amount of ethanol and water, centrifugal precipitation, and drying, super-macroporous microspheres ( image 3 , Figure 4 ;in image 3 with a magnification of 1,000, Figure 4 with a magnification of 5,000).
Embodiment 3
[0031] Add 1.01 ml of glycidyl methacrylate monomer and 0.61 ml of trimethylolpropane trimethacrylate crosslinking agent to 3.78 ml of dodecanol, mix well, add 86.5 mg of benzoyl peroxide, and blow in nitrogen 5 min, after removing oxygen, add 45 µl N,N-dimethylaniline, mix well; transfer to 30 ml water in the presence of stabilizer, disperse evenly; then place it at 4 °C for 48 hours; stop reaction, washed with a certain amount of ethanol and water, centrifuged, and dried to obtain super-macroporous microspheres ( Figure 5 , Image 6 ;in Figure 5 The magnification factor is 800, Image 6 with a magnification of 30,000).
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