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本文就 K_2S_2O_5—R_2氧化还原引发体系对丙烯酰胺(AM)水溶液聚合的初期反应动力学行为进行了研究,得出动力学方程式。并利用 Arrhanius 方程测定了表观活化能。所得动力学方程为:R_p=k[ox]~(0.9)[rdd]~(0.6)[AM]~(2.1)式中:R_p——聚合初期反应速率(mol/l·min)[ox]——氧化剂浓度(mol/l)[red]——还原剂浓度(mol/l)[AM]——AM 浓度(mol/l)k——速率常数所得活化能为:E=17.4(kcal/mol)
In this paper, K_2S_2O_5-R_2 redox initiator system of acrylamide (AM) aqueous solution of the initial reaction kinetic behavior was studied, the kinetic equation was obtained. The Arrhanius equation was used to determine the apparent activation energy. The obtained kinetic equation is: Rp = k [ox] ~ (0.9) [rdd] ~ (0.6) [AM] ~ (2.1) where Rp is the initial reaction rate in mol / - oxidant concentration (mol / l) [red] - reductant concentration (mol / l) [AM] - AM concentration (mol / l) k - rate constant The resulting activation energy is: E = 17.4 (kcal / mol)