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Acrylamide-sodium acrylate-dimethyldiallylammonium chloride copolymer
[Preparation method] Sodium acrylamide acrylate-dimethyldiallylammonium chloride copolymer is prepared by aqueous solution polymerization method, the reaction formula is as follows:
Add deionized water, chelating agent, chain transfer agent and acrylic acid (AA) monomer into the reactor, and adjust the pH value of the system to 6-9 with sodium hydroxide solution, and add dimethyl diallyl ammonium chloride separately (DMDAAC) monomer and acrylamide (AM) monomer solution, after deoxidizing with N2 for 30 minutes, add initiator (such as potassium persulfate /urea, potassium persulfate/sodium bisulfite, etc.
Acrylamide-acrylamido-2-methylpropanesulfonate-dimethyldiallylammonium chloride copolymer
[Preparation method] Acrylamide-acrylamido-2-methylpropanesulfonic acid sodium-dimethyldiallylammonium chloride copolymer uses acrylamide (AM) and acrylamido-2-methylpropanesulfonic acid Sodium (AMPS) and dimethyl diallyl ammonium chloride (DMDAAC) monomers are polymerized by aqueous solution.
Add deionized water, chelating agent, chain transfer agent and acrylamido-2-methylpropanesulfonic acid (AMPS) monomer into the reactor, and adjust the pH of the system with sodium hydroxide solution at 20～30℃ To 6～7, then add dimethyl diallyl ammonium chloride (DMDAAC) and acrylamide (AM) monomer solutions, deoxidize with N 2 for 20 to 30 minutes, then add initiator (such as potassium persulfate/ AIBN/urea, potassium persulfate/sodium bisulfite, etc.
