Surface-active two-tailed hydrophobic associated polymer and preparation method thereof
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机译:表面活性的双尾疏水缔合聚合物及其制备方法
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摘要
The present invention provides a surface-active two-tailed hydrophobic associated polymer and a preparation method thereof. The surface-active two-tailed hydrophobic associated polymer is prepared using a micellar free radical copolymerization method including: adding a surfactant sodium lauryl sulfate and a hydrophobic monomer N-phenethyl-N-alkyl (methyl) acrylamide or N-benzyl-N-alkyl (methyl) acrylamide into an aqueous solution containing acrylamide, acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid, and surface-active macromonomer polyoxyethylene lauryl ether (methyl) acrylate, wherein the surfactant is used to solubilize the hydrophobic monomer in the formed micelle; adjusting pH to 6-8 with sodium hydroxide, and copolymerizing the hydrophobic monomer and a water-soluble monomer by means of photoinitiation. The properties, such as viscosifying property, temperature resistance, salt resistance and hydrolysis resistance, of the hydrophobic associated polymer can be effectively improved. The preparation method is reliable in principle and simple in operation and has a wide market prospect.
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