Sulfonate lycine type hydrophobic associated polymer and preparation method thereof
The present invention discloses a sulfonate lycine type hydrophobic associated polymer and a preparation method thereof. A preparation process of the sulfonate lycine type hydrophobic associated polymer comprises the following steps: firstly, mixing acrylamide and acrylic acid in an aqueous solution; adjusting pH of the system to be around 6 to 8; adding 3-(dimethylamino propyl methacrylamide) propanesulfonate, N-aryl-N-alkyl (methyl) acrylamide and lauryl sodium sulfate and stirring till the solution is clear; and after nitrogen is introduced for deoxidization, adding a photoinitiator azobis (isobutylamidine hydrochloride) for performing polymerization under photoinitiation conditions. The sulfonate lycine type hydrophobic associated polymer integrates the advantages of a two-tailed hydrophobic associated polymer and the advantages of a lycine type polymer, such that the viscosifying property, the temperature resistance, the salt resistance and the hydrolysis resistance of the sulfonate lycine type hydrophobic associated polymer are remarkably improved.
SOUTHWEST PETROLEUM UNIVERSITY
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Youshi Qiang Yongming Jinzhou
Jiang Ren Li Zhao