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紫外光敏引发丙烯酰胺/甲基丙烯酰氧乙基三甲基氯化铵共聚反应的动力学

Polymer Materials Science & Engineering(2013)

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Abstract
单体丙烯酰胺(AM)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)通过2,2'-偶氮(2-脒基丙烷)二氢氯化物(V-50)引发,在紫外光的作用下合成P(AM-co-DMC)共聚物.通过毛细管膨胀计法测定了其反应动力学.随着单体浓度、引发剂浓度、反应温度的升高,反应速率也随之增加.在控制低转化率的条件下,以Fineman-Ross、Kelen-Tudos及Ye2rielevBrokhina-Roskin法计算了单体竞聚率.得出了在紫外光与引发剂共同作用下,AM和DMC共聚单体的反应级数为2.2502,引发剂的反应级数为0.5032,反应活化能为38.1920kJ/mol,AM和DMC的竞聚率分别为2.3398和0.2849.
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Key words
reactivity ratio,acrylamide,copolymerization,ultraviolet ray,kinetics
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