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Synthesis of hydrophobically associating polymer: temperature resistance and salt tolerance properties

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Abstract

Hydrophobic associating polymer was synthesized by aqueous polymerization of acrylamide, 2-acrylamide-2-methylpropanesulfonic acid and hydrophobic monomer octadecyl dimethyl allyl ammonium chloride (C18DMAAC) by aqueous phase polymerization with potassium persulfate sodium bisulfite oxidation–reduction initiation. The structure of the polymer was characterized by FTIR and TGA, the effect of hydrophobic monomer on the properties of polymer powder in deionized water and salt was investigated. The salt resistance, temperature resistance and shear resistance of the diluent were studied by Brinell viscometer and rheometer when the copolymer was diluted to 1500 ppm in deionized water. The results showed that the solubility of the polymer decreased with the addition of C18DMAAC, the salt resistance and temperature resistance increased significantly. The total salinity of the copolymer was 25,000 mg/L at 68 ℃, and the viscosity under 1500 mg/L calcium and magnesium ions was more than 20 mPa s. After 120 min shearing, the viscosity of the polymer solution with hydrophobic monomer is more than 900 mPa s, and the viscosity retention rate is more than 90%.

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Authors and Affiliations

  1. Ningbo Fengcheng Advanced Energy Materials Research Institute Co., Ltd., Ningbo, 315000, China

    Jianmin Shi, Zhilian Wu, Qingchun Deng, Ling Liu, Xufeng Zhang, Xiangyang Wu & Yaoguo Wang

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  1. Jianmin Shi
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  2. Zhilian Wu
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  3. Qingchun Deng
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  4. Ling Liu
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  5. Xufeng Zhang
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  6. Xiangyang Wu
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  7. Yaoguo Wang
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Correspondence to Jianmin Shi or Zhilian Wu.

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Shi, J., Wu, Z., Deng, Q. et al. Synthesis of hydrophobically associating polymer: temperature resistance and salt tolerance properties. Polym. Bull. 79, 4581–4591 (2022). https://doi.org/10.1007/s00289-021-03713-x

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  • DOI: https://doi.org/10.1007/s00289-021-03713-x

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