Abstract
AbstractThe redox system of potassium persulfate–thiomalic acid (I1–I2) was used to initiate the polymerization of acrylamide (M) in aqueous medium. For 20–30% conversion the rate equation is where Rp is the rate of polymerization. Activation energy is 8.34 kcal deg−1 mole−1 in the investigated range of temperature 25–45°C. Mn is directly proportional to [M] and inversely to [I1]. The range of concentrations for which these observations hold at 35°C and pH 4.2 are [I1] = (1.0–3.0) × 10−3, [I2] = (3.0–7.5) × 10−3, and [M] = 5.0 × 10−2–3.0 × 10−1 mole/liter.
Published Version
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