| abstract |
The invention relates to the fields of medical materials, environmental protection, metallurgy and the like, and specifically discloses a preparation method of a macroporous resin, which specifically comprises the following steps: (1) preparing an aqueous phase; (2) preparing an oil phase; (3) suspension polymerization: Steps (1) and (2) prepare the water phase and the oil phase and add them to a three-necked flask for suspension polymerization; (4) Cleaning and shaping: Repeat cleaning to remove excess water phase, oil phase and porogen, and dry under vacuum and negative pressure. A cross-linked macroporous resin adsorbent is obtained; (5) Chloromethylation: adding a chloromethylating agent, heating up, adding a catalyst, and repeating the steps of cleaning to obtain a secondary cross-linked macroporous resin. In the present invention, when synthesizing resin, by adopting a safe, non-toxic, non-irritating and non-volatile organic silicon solvent to replace traditional toxic organic solvents such as toluene and xylene, the safety of experimenters is protected, and waste liquid and waste gas are not generated. The environment is protected, and the invention is economical and convenient, and is more conducive to large-scale production. |