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Frequency sweep tests of Gel II contains (A) 10 wt% AAm, (B) 15 wt% AAm, and (C) 20 wt% AAm when the reaction time were 1 min, 30 min, and 3h; (D) The value of G' in Frequency sweep tests of Gel II contains 10 wt% AAm, 15 wt% AAm, 20 wt% AAm, respectively, when the reaction time was 3 h. Each bar represents the mean (n = 22) ± SD.
