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- W3173998512 abstract "Controlling unwanted water has been major objective of oil and gas producers. Our theoretical and experimental studies demonstrated that treatment with a preformed particle gel (PPG) of poly(AAm-co-AA) is a successful approach to control unwanted water in oil fields. The swelling capacity of the gels in salt water (formation water) is one of the most crucial criteria in the selection of hydrogel types. In this study an efficient series of gels of acrylamide and acrylic acid, as P(AAm/AA) copolymers, were synthesized by a free radical method. A central-composite Design of Experiments (DOE) approach was employed to design the experiments and to optimize the desired properties of the copolymers. The mole ratio of AAm/AA, mole percentage of the crosslinker agent (N,N'-methylenebisacrylamide, MBA) and swelling time were simultaneously examined as key factors affecting the swelling behavior of the hydrogels. The results showed that these three factors were the dominate factors and were useful for prediction of the swelling process. The predicting model indicated that the optimized ranges of AAm/AA ratio, MBA mole percentage and swelling time, causing the maximum swelling percentage of PPG samples, were 6.77 to 8.54, 9.92 to 11.6% and 170.7 to 179.99 min, respectively. The maximum swelling percentage of the PPG samples was found to be 390% in the optimum ranges of AAm/AA, MBA mole percentage and swelling time. Additionally, it was evident from the results that the predicted results were in good agreement with the experimental data." @default.
- W3173998512 created "2021-07-05" @default.
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- W3173998512 date "2021-06-28" @default.
- W3173998512 modified "2023-09-26" @default.
- W3173998512 title "Optimization of Key Parameters Affecting Swelling Capacity of Poly(acrylamide-co-acrylic acid) Hydrogels in Salt Water Using Response Surface Methodology (RSM)" @default.
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- W3173998512 doi "https://doi.org/10.1080/00222348.2021.1932950" @default.
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